Impacto de instituciones cubanas en la producción científica acerca de las Ciencias de la Salud

En el año 2021 se desarrollan investigaciones en el Centro Nacional de Información de Ciencias Médicas para analizar el comportamiento de la producción científica cubana en salud en varias bases de datos. Como resultado de estos procesos se generó una serie de informes bibliométricos enfocados en el apoyo a la toma de decisiones de los directivos del sistema. Uno de los componentes analizados fueron las instituciones cubanas que contribuyen a la producción científica del país en temas relacionados con la salud. Este trabajo tuvo como objetivo identificar las principales instituciones cubanas que más impacto tienen en la producción científica cubana relacionada con las Ciencias de la Salud. Se realizó un análisis bibliométrico descriptivo en múltiples fuentes de información. Los datos fueron extraídos durante los primeros meses del año 2021. Las instituciones investigativas de salud y centros de biotecnología son los que más aportan a las publicaciones. También contribuyen de forma elevada varios centros de enseñanza superior. Es la Universidad de La Habana la entidad que mayor cantidad de artículos tributa en todas las bases de datos, seguida por la Universidad de Ciencias Médicas de La Habana y la Universidad Central "Marta Abreu" de Las Villas. Esto destaca la importancia de las universidades y su rol para el desarrollo de la ciencia y la investigación en el país. Se detectaron problemas en los procesos de declaración de metadatos y errores en los nombres de las instituciones en las bases de datos, lo cual influye directamente en el comportamiento de la producción científica cubana en salud.

In the year 2021, research is being developed at the National Center for Medical Sciences Information to analyze the behavior of Cuban scientific production in health in several databases. As a result of these processes, a series of bibliometric reports were generated to support decision making by the system's managers. One of the components analyzed were the Cuban institutions that contribute to the country's scientific production in health-related topics. The objective of this work was to identify the main Cuban institutions that have the greatest impact on Cuban scientific production related to Health Sciences. A descriptive bibliometric analysis was carried out in multiple sources of information. The data were extracted during the first months of the year 2021. Health research institutions and biotechnology centers are the main contributors to publications. Several higher education centers also contribute a high number of publications. The University of Havana is the entity that contributes the largest number of articles in all the databases, followed by the University of Medical Sciences of Havana and the Central University "Marta Abreu" of Las Villas. This highlights the importance of universities and their role in the development of science and research in the country. Problems were detected in the processes of metadata declaration and errors in the names of the institutions in the databases, which directly influence the behavior of Cuban scientific production in health.

Cardiothoracic Surgery in the Caribbean

Abstract Introduction: Despite being one of the main vacation destinations in the world, health care in the Caribbean faces many difficulties. The challenges involved in these islands' medical care range from low-resource institutions to lack of specialized care. In the field of thoracic and cardiac surgery, many limitations exist, and these include the lack of access to cardiac surgery for many small islands and little governmental funding for minimally invasive approaches in thoracic surgery. Methods: Literature review was done using PubMed/MEDLINE and Google Scholar databases to identify articles describing the characteristics of thoracic and cardiac surgery departments on Caribbean islands. Articles on the history, current states of practice, and advances in cardiothoracic surgery in the Caribbean were reviewed. Results: Regardless of the middle to high-income profile of the Caribbean, there are significant differences in the speed of technological growth in cardiothoracic surgery from island to island, as well as disparities between the quality of care and resources. Many islands struggle to advance the field of cardiothoracic surgery both through lack of local cardiac surgery centers and limited financial funding for minimally invasive thoracic surgery. Conclusions: Cardiac and thoracic surgery in the Caribbean depend not only on the support from local government policies and proper distribution of healthcare budgets, but efforts by the surgeons themselves to change and improve institutional cultures. Although resource availability still remains a challenge, the Caribbean remains an important region that deserves special attention with regard to the unmet needs for long-term sustainability of chest surgery.

Análisis bibliométrico de la producción científica peruana sobre la COVID-19

Objetivo: Caracterizar la producción científica peruana sobre la COVID-19 al 31 de enero del 2021. Materiales y métodos: Se realizó un estudio bibliométrico en dos bases de datos (MEDLINE y SciELO). Se incluyeron artículos originales y originales breves en la que al menos un autor consignó como filiación una institución peruana. Se describió la producción científica según la institución de procedencia, su aprobación por un comité de ética en investigación, el registro en las plataformas dispuestas por normativa, las revistas científicas en las que se publicaron, el financiamiento de las investigaciones, y las redes de colaboración peruana. Resultados: Se incluyeron 106 artículos, de los cuales solo tres (2,8%) fueron ensayos clínicos. De las diez primeras instituciones con mayor producción científica, solo dos no pertenecen al sector educación. En 53 (50,0%) artículos no se tuvo información de los aspectos éticos o no se declaró explícitamente si fue o no aprobado por un comité de ética en investigación. Solo ocho (7,7%) de 104 artículos que debieron estar registrados en PRISA, lo hicieron, doce (11,3%) artículos se publicaron en revistas peruanas. En 71 (67,0%) investigaciones no se consignó la fuente de financiamiento o fueron autofinanciadas. Se encontró colaboración internacional en 70 publicaciones (66,0%). Conclusión: Las instituciones peruanas más productivas se encuentran en Lima. La mitad de los artículos no consignaron aspectos éticos. Casi la totalidad de los estudios no se registraron en las plataformas dispuestas por normativa, y en más de la mitad de los artículos no se consignó la fuente de financiamiento o fueron autofinanciadas.

Objective: To describe the Peruvian scientific output on COVID-19 up to January 31, 2021. Materials and methods: We carried out a bibliometric study using two databases (MEDLINE and SciELO). We included original or short original articles with at least one author with Peruvian institutional affiliation. Scientific output was described according to: institution, approval by a Research Ethics Committee, registration in the platforms established by regulations, scientific journals in which they were published, research funding, and Peruvian collaboration networks. Results: A total of 106 articles were analyzed, only three (2.8%) were clinical trials. Of the top 10 institutions with the highest scientific output, only two did not belong to the education sector. A total of 53 (50.0%) articles had no information regarding ethical aspects or it was not explicitly stated whether or not it was approved by a Research Ethics Committee. Only 8 (7.7%) of 104 articles were registered in PRISA; 12 (11.3%) articles were published in Peruvian journals. Regarding funding, 71 (67.0%) investigations did not specify the source or they were self-financed. We found international collaboration in 70 publications (66.0%). Conclusions: The most productive Peruvian institutions are found in Lima. Half of the articles did not state ethical aspects in any part of the document. Almost all of the studies were not registered on the platforms established by regulations. In more than half of the articles the source of funding is not stated or they were self-financed.

Las 100 revistas de mayor impacto sobre farmacología, toxicología y farmacia / The 100 highest impact pharmacology, toxicology and pharmacy journals

Introducción: Los indicadores bibliométricos ayudan a evaluar la repercusión de la evidencia disponible. Objetivo: Comparar el Factor de Impacto, el Eigenfactor Score, SCImago Journal & Country Rank y el Source Normalized Impact per Paper, en revistas de farmacología, toxicología y farmacia de mayor impacto a nivel mundial en sus ediciones 2018. Métodos: Estudio descriptivo, retrospectivo, obtenido del análisis bibliométrico. Se realizó una búsqueda electrónica en el Instituto para la Información Científica en revistas incluidas en el Journal Citation Report (https://scijournal.org/), para la obtención del Factor de Impacto y Puntuación del factor propio, en el portal web oficial de Scimago Journal para acceder al SCImago Journal & Country Rank (https://www.scimagojr.com/) y para la obtención del Source Normalized Impact per Paper en el portal Journal Indicators (https://www.journalindicators.com/indicators), edición 2018. Los datos se cuantificaron mediante el paquete estadístico STATA v.14.0. Se analizó las características de las revistas para cada indicador, la correlación entre las variables se estimó mediante la prueba de Spearman. Resultados: Se analizaron 100 revistas, todas indizadas en las bases de datos seleccionadas. Los coeficientes de correlación de Spearman obtenidos entre los indicadores estudiados fueron: Factor de Impacto y Puntuación del factor propio = 0,246; Factor de Impacto y Scimago Journal & Country Rank = 0,758; Factor de impacto y Source Normalized Impact per Paper = 0,680; Puntuación del factor propio y Scimago Journal & Country Rank = 0,367, Puntuación del factor propio y Source Normalized Impact per Paper = 0,264 y SCImago Journal & Country Rank y Source Normalized Impact per Paper = 0,541; además fueron estadísticamente significativas (p < 0,05). Conclusiones: Se encontró una correlación moderada a alta y significativa entre el factor de impacto, Puntuación del factor propio, SCImago Journal & Country Rank y el Source Normalized Impact per Paper(AU)

Introduction: Bibliometric indicators are useful to evaluate the impact of the evidence available. Objective: Compare the Impact Factor, the Eigenfactor Score, the SCImago Journal & Country Rank and the Source Normalized Impact per Paper of the highest worldwide impact pharmacology, toxicology and pharmacy journals in their 2018 editions. Methods: A retrospective descriptive study was performed of data obtained from bibliometric analysis. An electronic search was conducted at the Scientific Information Institute of journals included in the Journal Citation Report (https://scijournal.org/) to obtain the Impact Factor and the Eigenfactor Score, in the SCImago Journal official web portal to access the SCImago Journal & Country Rank (https://www.scimagojr.com/) and in Journal Indicators (https://www.journalindicators.com/indicators) 2018 edition to obtain the Source Normalized Impact per Paper. Data were quantified with the statistical package STATA v.14.0. An analysis was done of the characteristics of the journals for each indicator, whereas correlation between the variables was estimated with Spearman's test. Results: A total 100 journals were examined, all of them indexed in the databases selected. Examination of the indicators studied revealed the following Spearman's correlation coefficients: Impact Factor and Eigenfactor Score = 0,246; Impact Factor and SCImago Journal & Country Rank = 0,758; Impact Factor and Source Normalized Impact per Paper = 0,680; Eigenfactor Score and SCImago Journal & Country Rank = 0,367, Eigenfactor Score and Source Normalized Impact per Paper = 0,264, and SCImago Journal & Country Rank and Source Normalized Impact per Paper = 0,541. They were all statistically significant (p < 0,05). Conclusions: A moderate to high and significant correlation was found between Impact Factor, Eigenfactor Score, SCImago Journal & Country Rank and Source Normalized Impact per Paper(AU)

Contribuições técnicas e socioculturais da prevenção quaternária para a atenção primária à saúde: caminhos e desafios / Technical and socio-cultural contributions of quaternary prevention for primary health care: paths and challenges / Contribuciones técnicas y socioculturales de prevención cuaternaria para la atención primaria de salud: caminos y desafíos

Introdução: No contexto do Sistema Único de Saúde, o conceito da prevenção quaternária adentra timidamente os níveis de atenção à saúde, no entanto, sofre expansão significativa no âmbito da atenção primária à saúde. Objetivo: Identificar por meio da sistematização de evidências científicas, as contribuições técnicas e socioculturais da prevenção quaternária no âmbito da atenção primária à saúde no Brasil. Métodos: Trata-se de uma revisão integrativa de estudos presentes nas bases de dados científicas da Scientific Electronic Library Online, Biblioteca Virtual em Saúde, biblioteca virtual da Comissão de Aperfeiçoamento de Pessoal do Nível Superior e MEDLINE via PubMed com a utilização dos descritores "prevenção quaternária" e "atenção primária à saúde", em inglês e português. Resultados: O corpus de análise foi composto por 22 artigos, sendo que a produção científica sobre o tema se deu de forma mais intensa a partir do ano de 2015 e, em sua maioria, possuíam como abordagem metodológica ensaios teóricos. Dentre as contribuições técnicas destacaram-se a introdução do ensino da prevenção quaternária de modo continuado aos graduandos e profissionais; a construção de protocolos e documentos de amparo profissional; a utilização de modelos explicativos dinâmicos na socialização do quadro clínico; a conduta profissional com os usuários e as contribuições socioculturais envolvendo mudanças na percepção profissional e comunitária sobre o fenômeno saúde-doença, assim como o incentivo a práticas de desmedicalização sociocultural em relação à dor, incapacidade, desconforto, envelhecimento, nascimento e morte. Conclusão: Apesar do reconhecimento das potencialidades da prevenção quaternária, faz-se necessário fortalecer estratégias que possibilitem o desenvolvimento de políticas públicas para fomentar e gerenciar alianças estratégicas com tomadores de decisão, profissionais de saúde e cidadãos, para fomentar a redução de diagnósticos e tratamentos excessivos, contribuindo com a qualidade do cuidado.

Introduction: In the context of the Unified Health System, the concept of quaternary prevention shyly enters the levels of health care, however, undergoes significant expansion in the scope of primary health care. Objective: To identify, through the systematization of scientific evidence, the technical and socio-cultural contributions of quaternary prevention within the scope of primary health care in Brazil. Methods: This is an integrative review of studies present in the scientific databases of the Scientific Electronic Library Online, Regional Portal of the Virtual Health Library of the Latin American and Caribbean Center on Health Sciences Information of the Pan American Health Organization, virtual library of the Higher Education Personnel Improvement Commission, and MEDLINE through PubMed using the descriptors "quaternary prevention" and "primary health care", in English and Portuguese. Results: The corpus of analysis consisted of 22 articles, and the scientific production on the topic took place more intensively from the year 2015 and, for the most part, had theoretical essays as methodological approach. Among the technical contributions, we highlight the introduction of teaching on quaternary prevention in a continuous way to undergraduates and professionals; the construction of protocols and documents of professional support; the use of dynamic explanatory models in the socialization of the clinical picture and professional conduct with users and socio-cultural contributions involve changes in the professional and community perception about the phenomenon of illness and health conception, as well as the incentive to practices of socio-cultural demedicalization in relation to pain, disability, discomfort, aging, birth, and death. Conclusion: Despite the recognition of the potential of quaternary prevention, it is necessary to strengthen strategies that enable the development of public policies to foster and manage strategic alliances with decision makers, health professionals and citizens, to promote the reduction of excessive diagnoses and treatments, contributing to the quality of care.

Introducción: En el contexto del Sistema Único de Salud, el concepto de prevención cuaternaria entra tímidamente en los niveles de atención de salud, sin embargo, experimenta una expansión significativa en el alcance de la Atención Primaria de Salud. Objetivo: Identificar, a través de la sistematización de evidencia científica, las contribuciones técnicas y socioculturales de la prevención cuaternaria en el ámbito de la Atención Primaria de Salud en Brasil. Métodos: Esta es una revisión integradora de estudios presentes en las bases de datos científicas de la Biblioteca Electrónica Científica en línea, Portal Regional de la Biblioteca Virtual en Salud del Centro Latinoamericano y del Caribe de Información en Ciencias de la Salud de la Organización Panamericana de la Salud, biblioteca virtual de la Comisión de Mejoramiento del Personal de Educación Superior y MEDLINE a través de PubMed utilizando los descriptores de prevención cuaternaria y atención primaria de salud, en inglés y portugués. Resultados: El corpus de análisis estuvo conformado por 22 artículos, siendo la producción científica sobre el tema más intensiva desde 2015 y, en su mayor parte, tuvo ensayos teóricos como abordaje metodológico. Entre los aportes técnicos, destacamos la implantación de la docencia en prevención cuaternaria de forma continua a estudiantes de pregrado y profesionales; construcción de protocolos y documentos de apoyo profesional, uso de modelos explicativos dinámicos en la socialización del cuadro clínico y conducta profesional con los usuarios y los aportes socioculturales implican cambios en la percepción profesional y comunitaria sobre el fenómeno de la enfermedad y la concepción de la salud, así como el incentivo a prácticas de desmedicalización sociocultural en relación al dolor, discapacidad, malestar, envejecimiento, nacimiento y muerte. Conclusión: A pesar del reconocimiento del potencial de la prevención cuaternaria, es necesario fortalecer estrategias que permitan el desarrollo de políticas públicas para fomentar y gestionar alianzas estratégicas con los tomadores de decisiones, profesionales de la salud y ciudadanos, para promover la reducción de diagnósticos y tratamientos excesivos, contribuyendo a la calidad de la atención.

Factores pronósticos de severidad en pancreatitis aguda en un Hospital Peruano

Objetivo : Determinar los factores pronósticos de severidad en pacientes con pancreatitis aguda (PA) en el Hospital Nacional Sergio E. Bernales durante el periodo junio 2016 a junio 2018. Métodos : Estudio de casos y controles, siendo los casos los pacientes con pancreatitis moderada o severa y los controles los de pancreatitis leve. Los datos para las variables evaluadas fueron obtenidos a partir de la revisión de Historias Clínicas. Se usó chi-cuadrado para evaluar la asociación y se hallaron los OR con sus respectivos IC 95%. Se utilizó programa SPSS 25. Resultados : Se revisaron 162 historias clínicas de los cuales 54 (33,3%) pacientes desarrollaron PA moderadamente severa (PAMS) o severa (PAS) y 108 (66.7%) cursaron con PA leve (PAL). De las PAMS y PAS 55,6% fueron hombres; mientras que en las PA leves el sexo femenino fue el predominante con un 91,7 %. La mayoría fue de origen biliar con un 83,3%. Los factores asociados a PAMS/PAS incluyeron tener más de 60 años (OR: 3.10; IC 95%: 1,26-7,65; p= 0.011), presentar derrame pleural (OR: 7,78 IC 95%: 5,745-54,418; p40% (OR: 4,17; IC 95%: 2.07-8.39; valor p: 40% y puntuación APACHE ≥8.

Objective: To determine the prognostic factors of severity in patients with acute pancreatitis (AP) at the Hospital Nacional Sergio E. Bernales during the period June 2016 to June 2018. Methods: Study of cases and controls, being the cases patients with AP moderately severe or severe and controls those of mild AP. The medical records were reviewed to apply the APACHE-II score. Chi-square was used and the ORs were obtained with their respective 95% CI. SPSS 25 program was used. Results: 162 medical records were reviewed. 54 (33.3%) patients developed AP moderately severe or severe and 108 (66.7%) had mild AP. Of the patients with AP moderately severe or severe, 55.6% were men; while in mild AP the female sex was predominant with 91.7%. The majority were of biliary origin (83.3%). There was a predominance of mild AP. AP moderately severe or severe was associated with being over 60 years old (OR: 3.10; 95% CI: 1.26-7.65; p= 0.011), presenting pleural effusion (OR: 7.78 95% CI: 5.745-54.418 ; p 40% (OR: 4.17; 95% CI: 2.07-8.39; p 40% and APACHE score ≥8.

Las falacias de la p y significación estadística / The fallacies of P and statical significance

Resumen ANTECEDENTES: El valor de p es el método más empleado para estimar la significación estadística de cualquier hallazgo; sin embargo, en los últimos años se ha intensificado su debate al respecto, debido a la baja credibilidad y reproducibilidad de diversos estudios. OBJETIVO: Describir el estado actual del concepto del valor de p y la significación estadística (prueba de significación de la hipótesis nula [por sus siglas en inglés: Null Hypothesis Significance Testing: NHST]), especificar los problemas más importantes y puntualizar las soluciones propuestas para la mejor utilización de los conceptos. METODOLOGÍA: Se llevó a cabo la búsqueda bibliográfica en MEDLINE y Google Scholar, con los términos: "NHST", "Statistical significance; P value" en idioma inglés y español, de 2018-2019, limitándose a la selección de artículos publicados entre 2005 y 2019, mediante la revisión de tipo narrativo con búsqueda manual; sobre todo estudios de metodología. RESULTADOS: La búsqueda global reportó 1411 artículos: 875 de PubMed y 536 de Google Scholar. Se excluyeron 817 por duplicación, 155 sin acceso completo y 414 ensayos clínicos (sin metodología estadística); los 25 restantes fueron el motivo del análisis. CONCLUSIONES: El concepto del valor de p no es simple, tiene varias falacias y malas interpretaciones que deben considerarse para evitarlas en lo posible. Se recomienda no usar el término "estadísticamente significativo" o "significativo", sustituir el umbral de 0.05 por 0.005, informar valores de p precisos y con IC95%, riesgo relativo, razón de momios, tamaño del efecto o potencia y métodos bayesianos.

Abstract BACKGROUND: The P value is the most widely used method of estimating the statistical significance of any finding, however, in recent years the debate over the P value has been increasingly intensified due to the low credibility and reproducibility of many studies. OBJECTIVE: To describe the current state of the concept of the value of P and the statistical significance (Null Hypothesis Significance Testing (NHST), specify the most important problems and point out the solutions proposed in the literature for their best use. METHODOLOGY: Search in MEDLINE and Google Scholar, with the terms: "NHST", "Statistical significance; P value "in English and Spanish, carried out from 2018-2019, limited to articles published from 2005 to 2019, and a narrative-type review with manual search. Articles on methodology were preferably selected. RESULTS: The global search yielded 1411 articles, 875 from PubMed and 536 from Google Scholar. 817 were excluded by duplication, 155 without full access, 414 from clinical trials, without statistical methodology. The 25 selected articles were the reason for the analysis. CONCLUSIONS: The concept of the value of P is not simple, and it has several fallacies and misinterpretations that must be taken into account to avoid them as much as possible. Recommendations: Do not use "statistically significant" or "significant", replace the threshold of 0.05 with 0.005, report accurate P values with 95% CI, relative risk, odds ratio, effect size or power, and Bayesian methods.

The evidence-based medicine PICO strategy applied to dentistry using MeSH, Emtree and DeCS / Estrategia PICO de la medicina basada en la evidencia aplicada a odontología con uso de los tesauros MeSH, Emtree y DeCS

Abstract Introduction: the PICO mnemonic is an evidence-based medicine tool that helps formulate the research questions needed to conduct the right search for scientific information. To properly classify this information, controlled languages or thesauruses are used for information retrieval. The aim was to identify whether the PICO search strategy in evidence-based medicine using the MeSH, Emtree and DeCS thesauruses answers a research question in the field of dentistry. Methods: to carry out the PICO strategy, a research question was formulated, identifying the natural language terms for each component of the PICO acronym, which were normalized into the three thesauruses to create the search equations. Results: 43 results were found on Medline through PubMed, 5 on Embase, and 0 on LILACS. There were 4 original articles that answer the research question, proving to be an effective strategy for finding clinical evidence. Conclusion: this study shows that the strategy helps obtain results to answer the question posed. It should be noted that, in order to successfully search and retrieve information, researchers should use the PICO strategy and get familiar with the thesauruses that help structure search equations in the various bibliographic databases.

Resumen Introducción: la mnemotecnia PICO es una herramienta de la medicina basada en la evidencia que facilita la formulación de preguntas de investigación necesarias para realizar una correcta búsqueda de información científica. Para clasificar adecuadamente esta información se utilizan lenguajes controlados o tesauros que permiten ubicar dicha información. El objetivo del presente estudio consistió en identificar si la estrategia de búsqueda PICO de la medicina basada en la evidencia, utilizando los tesauros MeSH, Emtree y DeCS, responde a una pregunta de investigación en el campo de la odontología. Métodos: para llevar a cabo la estrategia PICO, se elaboró una pregunta de investigación, se identificaron los términos en lenguaje natural para cada componente del acrónimo PICO, posteriormente se normalizaron en los tres tesauros y se construyeron las ecuaciones de búsqueda. Resultados: se encontraron 43 resultados en Medline a través de la plataforma PubMed, 5 en Embase y 0 en LILACS. Se identificaron 4 artículos originales que responden la pregunta de investigación, demostrando ser una estrategia eficaz para la búsqueda de evidencia clínica. Conclusión: el ejercicio realizado en el presente trabajo logró demostrar que la estrategia permite obtener resultados que responden a la pregunta planteada. Cabe resaltar que, para tener éxito en la búsqueda y obtención de información, los investigadores deberían utilizar la estrategia PICO y conocer los diferentes tesauros que facilitan la construcción de las ecuaciones de búsqueda en las diferentes bases de datos bibliográficas.

Análisis bibliométrico de temas económicos en artritis reumatoide / Literature analysis of economic aspects of rheumatoid arthritis

RESUMEN Introducción: La artritis reumatoide es una enfermedad inflamatoria con una prevalencia de hasta el 5% y con un impacto significativo sobre la calidad de vida. La artritis reumatoide representa una condición médica de alto costo; para el año 2010 se estimó un gasto anual de 4,8 millones de dólares, según un estudio realizado en Estados Unidos. Objetivos: Realizar el análisis descriptivo de la literatura biomédica indexada en Medline entre 1996 y 2016 sobre temas relacionados con aspectos económicos de la artritis reumatoide. Materiales y métodos: El diseño es un análisis bibliométrico retrospectivo, de tipo descriptivo. Se realizó una búsqueda bibliográfica en Medline utilizando GoPubMed y Fabumed, y la siguiente estrategia de búsqueda: («Arthritis, Rheumatoid¼ [Majr]) AND («Costs and Cost Analysis¼ [Majr]) AND (1996:2016 [dp]). Resultados: Se obtuvieron un total de 350 referencias indexadas en 80 revistas diferentes. Rheumatology con 6 (1,71%) referencias fue la revista con mayor número de publicaciones, seguida por Clinical and Experimental Rheumatology con 5 (1,42%). Estados Unidos fue el país más productivo con 30 (8,57%) publicaciones. En Latinoamérica, Brasil aporta 3 publicaciones (0,85%), al igual que Colombia con 3 publicaciones (0,85%). A lo largo del periodo estudiado se observó una tasa de crecimiento de 41,4%. Conclusiones: Colombia ha aportado menos del 1% de la producción científica a escala mundial; teniendo en cuenta que los análisis económicos no son extrapolables, consideramos necesario el desarrollo de nuevas propuestas y contribuciones en esta área de investigación en nuestro país.

ABSTRACT Introduction: Rheumatoid arthritis is an inflammatory disorder with a prevalence of up to 5%, and with a significant impact on the quality of life quality. Rheumatoid arthritis is a high cost medical condition. According to a study carried out in the United States by 2010 an annual expenditure of 4.8 million dollars was estimated. Objective: To perform a descriptive analysis of the Medline-indexed biomedical literature on economic aspects of rheumatoid arthritis published between 1996 and 2016. Materials and methods: The design is retrospective descriptive literature analysis, with a search performed in Medline using GoPubMed and Fabumed, with the following search strategy: ("Arthritis, Rheumatoid" [Majr]) AND ("Costs and Cost Analysis" [Majr]) AND (1996:2016 [dp]). Results: A total of 350 references were obtained on economic aspects of rheumatoid arthritis indexed in 80 different journals. Rheumatology, with 6 (1.71%) references was the top journal, followed by Clinical and Experimental Rheumatology with 5 (1.42%). The United States was the most productive country with 30 (8.57%) publications. In Latin America, Brazil and Colombia each contributed with 3 (0.85%) references. During the period studied, there was a growth rate of 41.4% Conclusions: Colombia has contributed with less than 1% of scientific production worldwide, and taking into account that the economic analysis cannot be decontextualized, the development of new proposals and contributions in this research area in our country is considered necessary.

Strategies to optimize MEDLINE and EMBASE search strategies for anesthesiology systematic reviews. An experimental study

ABSTRACT BACKGROUND: A high-quality electronic search is essential for ensuring accuracy and comprehensiveness among the records retrieved when conducting systematic reviews. Therefore, we aimed to identify the most efficient method for searching in both MEDLINE (through PubMed) and EMBASE, covering search terms with variant spellings, direct and indirect orders, and associations with MeSH and EMTREE terms (or lack thereof). DESIGN AND SETTING: Experimental study. UNESP, Brazil. METHODS: We selected and analyzed 37 search strategies that had specifically been developed for the field of anesthesiology. These search strategies were adapted in order to cover all potentially relevant search terms, with regard to variant spellings and direct and indirect orders, in the most efficient manner. RESULTS: When the strategies included variant spellings and direct and indirect orders, these adapted versions of the search strategies selected retrieved the same number of search results in MEDLINE (mean of 61.3%) and a higher number in EMBASE (mean of 63.9%) in the sample analyzed. The numbers of results retrieved through the searches analyzed here were not identical with and without associated use of MeSH and EMTREE terms. However, association of these terms from both controlled vocabularies retrieved a larger number of records than did the use of either one of them. CONCLUSIONS: In view of these results, we recommend that the search terms used should include both preferred and non-preferred terms (i.e. variant spellings and direct/indirect order of the same term) and associated MeSH and EMTREE terms, in order to develop highly-sensitive search strategies for systematic reviews.

Estudio bibliométrico: 45 años de literatura biomédica en trasplante de células madre hematopoyéticas / A Bibliometric Study: 45 Years of Biomedical Literature in Hematopoietic Stem Cell Transplantation / Estudo bibliométrico: 45 anos de literatura biomédica em transplante de células-tronco hematopoiéticas

Introducción: La bibliometría mide variables de la literatura científica que se describen de forma cuantitativa por medio de análisis estadístico; con esta herramienta se busca evidenciar el impacto de los trasplantes de células madre hematopoyéticas en la literatura de los últimos 45 años. Objetivo: Descripción de la literatura médica indexada en MEDLINE desde 1970 hasta 2015 sobre trasplantes de células madre hematopoyéticas. Metodología: Se realizó una búsqueda en la base de datos MEDLINE a través de GoPubMed y Fabumed. La estrategia de búsqueda fue: "Hematopoietic Stem Cell Transplantation" [Majr] AND "1970:2015"[dp]. Las variables analizadas fueron el número de publicaciones por año, revistas, países y porcentaje de publicaciones sobre trasplantes de células madre hematopoyéticas. Resultados: Se recuperaron 23,295 referencias sobre trasplantes de células madre hematopoyéticas. Se identificaron 1,844 revistas diferentes, el mayor número de publicaciones se encontró en Bone Marrow Transplantation con 2,443 publicaciones, seguida de Blood con 1,375 y Biology of Bone Marrow Transplantation con 1,319 referencias. Estados Unidos fue el país con mayor número de publicaciones con 7,491 (32.15%); en Latinoamérica fueron publicados 324 (1.39%). Los descriptores de la literatura más investigados relacionados con el tema fueron: Trasplante de células madre hematopoyéticas con 23,345 publicaciones, humanos con 22,019 y células madre con 17,564. Conclusiones: Las publicaciones sobre trasplantes de células madre hematopoyéticas han incrementado de forma progresiva durante los 45 años estudiados. Los países desarrollados son los que han realizado mayor investigación del tema, en contraste con el número de publicaciones en total. [Ríos-Moreno JV, Bueno-Flórez SJ, Conde-Hurtado DI, Tarazona N, Sossa-Melo Claudia Lucía. Estudio bibliométrico: 45 años de literatura biomédica en trasplante de células madre hematopoyéticas. MedUNAB 2017-2018; 20(3): 319-326].

Introduction: Bibliometric measures variables from the scientific literature that are described quantitatively by means of statistical analysis; this tool seeks to demonstrate the impact of hematopoietic stem cell transplants in the literature throughout the last 45 years. Objective: To describe the indexed medical literature in MEDLINE from 1970 to 2015 on hematopoietic stem cell transplants. Methodology: A search of the MEDLINE database through GoPubMed and Fabumed was performed. The search strategy was: Hematopoietic Stem Cell Transplantation [Majr] and 1970:2015 [dp]. The variables analyzed were the number of publications per year, journals, countries and percentage of publications on hematopoietic stem cell transplants. Results: 23,295 references were recovered on hematopoietic stem cell transplants. 1,844 different journals were identified, the largest number of publications was found in Bone Marrow Transplantation with 2,443 publications, followed by Blood with 1,375 and Biology of Bone Marrow Transplantation with 1,319 references. The United States was the country with the highest number of publications with 7,491 (32.15%), in Latin America 324 (1.39%) were published. The most researched descriptors of literature related to the topic were: Transplantation of hematopoietic stem cells with 23,345 publications, humans with 22,019 and stem cells with 17,564. Conclusions: The publications on hematopoietic stem cell transplants have increased progressively during the 45 years studied. The developed countries are the ones that have done more research on the subject, in contrast to the number of publications in total. [Ríos-Moreno JV, Bueno-Flórez SJ, Conde-Hurtado DI, Tarazona N, Sossa-Melo Claudia Lucía. A Bibliometric Study: 45 Years of Biomedical Literature in Hematopoietic Stem Cell Transplantation. MedUNAB 2017-2018; 20(3): 319-326].

Introdução: A bibliometria mede variáveis da literatura científica que são descritas quantitativamente por meio de análise estatística; esta ferramenta procura demonstrar o impacto dos transplantes de células estaminais hematopoiéticas na literatura dos últimos 45 anos. Objetivo: Descrição da literatura médica indexada em MEDLINE de 1970 a 2015 em transplantes de células-tronco hematopoiéticas. Metodologia: uma pesquisa do banco de dados MEDLINE foi realizada através do GoPubMed e Fabumed. Aestratégia de busca foi: "Transplante de células estaminais hematopoiéticas" [Majr] AND "1970: 2015" [dp]. As variáveis analisadas foram o número de publicações por ano, periódicos, países e porcentagem de publicações sobre transplantes de células estaminais hematopoiéticas. Resultados: Foram recuperadas 23,295 referências, em transplantes de células estaminais hematopoiéticas. Identificamos 1,844 periódicos diferentes; o maior número de publicações foi encontrado no Transplante de medula óssea com 2,443 publicações, seguido de sangue com 1,375 e Biologia do transplante de medula óssea com 1,319 referências. Os Estados Unidos foi o país com maior número de publicações com 7,491 (32.15%); na América Latina, foram publicados 324 (1.39%). Os textos mais pesquisados da literatura relacionados com o tema foram: Transplante de células-tronco hematopoiéticas com 23,345 publicações, humanos com 22,019 e células-tronco com 17,564. Conclusões: As publicações sobre transplantes de células estaminais hematopoiéticas aumentaram progressivamente durante os 45 anos estudados. Os países desenvolvidos são os que fizeram mais pesquisas sobre o assunto, em contraste com o número de publicações no total. [Ríos-Moreno JV, Bueno-Flórez SJ, Conde-Hurtado DI, Tarazona N, Sossa-Melo Claudia Lucía. Estudo bibliométrico: 45 anos de literatura biomédica em transplante de células-tronco hematopoiéticas. MedUNAB 2017-2018; 20(3): 319-326].

Adherence to clinical trial registration in countries of Latin America and the Caribbean, 2015 / Cumplimiento del registro de ensayos clínicos en los países de América Latina y el Caribe, 2015 / Adesão ao registro de ensaios clínicos em países da América Latina e Caribe, 2015

ABSTRACT Objective To determine the prevalence of clinical trial registration in the International Clinical Trial Registry Platform (ICTRP) for studies from Latin America and the Caribbean (LAC) and to identify the key characteristics that lead to prospective and retrospective registration. Methods A cross-sectional study identified published, clinical trial studies through a search of PubMed, LILACS (Latin American and Caribbean Center on Health Sciences Information), and the Cochrane Central Register of Controlled Trials. Studies were included if published on 1 January - 31 December 2015, at least one author was affiliated with at least one LAC country, the clinical trial was conducted in at least one LAC site, and the full text of the article was available. A manual search of reference lists was also conducted. ICTRP registration information and key trial characteristics were compared. Results Of 1 502 CT references that met inclusion criteria, 297 were randomly-selected, 90.9% of which were published in English, 65% from Brazil, and 76.8% had a LAC author as the first author. The proportion of CT registered in the ICTRP was 59.9 %, of which 51.7% were registered prospectively. Clinicaltrials.gov was most frequently used registry (84.8%), followed by the Registro Brasileiro de Ensaios Clínicos and the Registro Público Cubano de Ensayos Clínicos. Key characteristics that favored registration were being in study phase 3 or 4 or being a multi-center study. Data was compared to a similar study from 2013 that reported a registration rate of only 19.8%. Conclusions Registration adherence and prospective registration have increased in LAC in recent years, but the proportion of unregistered CT remains high. While there are still many challenges to overcome, the adherence strategies implemented in recent years have proven effective.

RESUMEN Objetivo Determinar la prevalencia del registro de ensayos clínicos de América Latina y el Caribe en la Plataforma de Registros Internacionales de Ensayos Clínicos (ICTRP, por su sigla en inglés) y definir los elementos clave que fomentan el registro prospectivo y retrospectivo de estudios. Métodos Se realizó un estudio transversal para encontrar los ensayos clínicos publicados mediante una búsqueda en PubMed, LILACS (Centro Latinoamericano y del Caribe para Información en Ciencias de la Salud) y el Registro Central Cochrane de Ensayos Clínicos Controlados. Se incluyeron los estudios que habían sido publicados entre el 1 de enero y el 31 de diciembre del 2015, que tenían cuando menos un autor afiliado a uno o más países de América Latina y el Caribe, que se habían realizado al menos en un centro de América Latina y el Caribe, y que tenían el texto completo del artículo disponible. También se llevó a cabo una búsqueda manual en listas de referencia. Se comparó la información sobre registros de la ICTRP y las características clave de los ensayos clínicos. Resultados De las 1 502 referencias que cumplieron los criterios de inclusión, se seleccionaron 297 aleatoriamente. De estas, 90,9% se habían publicado en inglés, 65% eran de Brasil y 76,8% tenían como primer autor un investigador de América Latina y el Caribe. La proporción de ensayos clínicos registrados en la ICTRP fue de 59,9%, de los cuales 51,7% se habían registrado prospectivamente. Clinicaltrials.gov fue el registro usado con mayor frecuencia (84,8%), seguido por el Registro Brasileiro de Ensaios Clínicos y el Registro Público Cubano de Ensayos Clínicos. Se determinó que las características clave que favorecían el registro eran que fuese un estudio de fase 3 o 4 o un estudio multicéntrico. Se compararon los datos con un estudio similar del 2013 en el que se había informado que la tasa de registro era de apenas 19,8%. Conclusiones En América Latina y el Caribe se ha observado en los últimos años un aumento en el cumplimiento del registro y del registro prospectivo de ensayos clínicos, pero la proporción de estudios sin registrar sigue siendo alta. Sin embargo, aunque persisten muchos retos que se deben superar, las estrategias adoptadas en los últimos años para que se cumpla este requisito han sido eficaces.

RESUMO Objetivo Determinar a prevalência do registro de estudos clínicos na Plataforma Internacional de Registro de Ensaios Clínicos (ICTRP) para estudos realizados na América Latina e Caribe (ALC) e identificar as principais características que conduzem ao registro prospectivo e retrospectivo. Métodos Em um estudo transversal, foram identificados os estudos clínicos publicados através de uma busca nas bases de dados PubMed, LILACS (Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde) e Cochrane Central Register of Controlled Trials (CENTRAL). Foram incluídos estudos publicados de 1o. de janeiro a 31 de dezembro de 2015, em que pelo menos um dos autores provinha de um país da ALC, realizados em um ou mais centros na ALC e que apresentavam o texto completo disponível. Foi também feita uma busca manual das listas de referências. Foram comparados os dados sobre o registro na ICTRP e as principais características dos estudos. Resultados Das 1.502 referências de estudos clínicos que atenderam os critérios de inclusão, 297 foram selecionadas aleatoriamente. Verificou-se que 90,9% dos estudos foram publicados em inglês, 65% eram provenientes do Brasil e 76,8% tinham como primeiro autor um pesquisador da ALC. O percentual de registro dos estudos clínicos na ICTRP foi de 59,9%, sendo 51,7% registrado de forma prospectiva. Clinicaltrials.gov foi o registro mais usado (84,8%), seguido do Registro Brasileiro de Ensaios Clínicos e do Registro Público Cubano de Ensayos Clínicos. As principais características que contribuíram para o registro foram ser estudo de fase 3 ou 4 ou multicêntrico. Os dados foram comparados com um estudo semelhante realizado em 2013 que verificou uma taxa de registro de apenas 19,8%. Conclusões Houve um aumento na adesão ao registro e no registro prospectivo na ALC nos últimos anos, porém o percentual de estudos clínicos não registrados continua alto. Embora ainda existam muitos desafios a serem vencidos, as estratégias de adesão implementadas nos últimos anos têm sido eficazes.

Educación continua: bases de datos biomédicas II: Medline/PubMed / Continuing education: biomedical databases II: Medline/PubMed

MEDLINE/PubMed es una de las bases de datos de bibliografía biomédica más grandes e importantes y el principal componente de PUbMed que cubre las áreas de medicina, enfermería, odontología, veterinaria, sistemas de salud y ciencias preclínicas. La interfaz de PubMed permite realizar búsquedas, no solamente en Medline, sino también en otras 35 bases de datos del NCBI (Centro Nacional para la Información Biotecnológica). Medline fue desarrollado por la Biblioteca Nacional de Medicina de los Estados Unidos (NLM), que forma parte del Instituto Nacional de Salud (NIH). En esta sexta entrega de educación continua se describen la estructura, el funcionamiento y las características de los principales componentes de Medline/PubMed que permitirán al usuario realizar una búsqueda bibliográfica más eficiente.

MEDLINE / PubMed is one of the largest and most important biomedical bibliographic databases and the main component of PUbMed that covers the areas of medicine, nursing, dentistry, veterinary, health systems and preclinical sciences. The PubMed interface allows searching not only of Medline, but also of another 35 NCBI (National Center for Biotechnology Information) databases. Medline was developed by the National Library of Medicine of the United States (NLM), which is part of the National Institute of Health (NIH). This sixth edition of continuing education describes the structure, operation and characteristics of the main components of Medline / PubMed that will allow the user to perform a more efficient bibliographic search.

Japanese Representation in High-impact International Primary Care Journals / 日本プライマリ・ケア連合学会誌

<p><b>Introduction: </b>There are no studies on how much primary care research from Japan has spread internationally. In this study, we aimed to investigate Japan's contribution to high-impact international primary care journals.</p><p><b>Methods: </b>We used the PubMed database and reviewed abstracts to examine the frequency of articles reporting clinical research or systematic reviews originating from Japan that were published in 5 high-impact international primary care journals from January 2011 to June 2016. We calculated the proportion of articles from Japan in the selected journals by year and journal.</p><p><b>Results: </b>Of the total articles (2,602), the proportion of Japanese articles in 5 high-impact international primary care journals was 0.15% (4 articles).</p><p><b>Conclusion: </b>Currently, Japan's contribution to high-impact international primary care journals is very small. In Japan, the development of research infrastructure, the education of researchers, and networks for research collaboration may be needed for international dissemination of primary care research.</p>

The sights and insights of examiners in objective structured clinical examinations / 보건의료교육평가

PURPOSE: The objective structured clinical examination (OSCE) is considered to be one of the most robust methods of clinical assessment. One of its strengths lies in its ability to minimise the effects of examiner bias due to the standardisation of items and tasks for each candidate. However, OSCE examiners' assessment scores are influenced by several factors that may jeopardise the assumed objectivity of OSCEs. To better understand this phenomenon, the current review aims to determine and describe important sources of examiner bias and the factors affecting examiners' assessments. METHODS: We performed a narrative review of the medical literature using Medline. All articles meeting the selection criteria were reviewed, with salient points extracted and synthesised into a clear and comprehensive summary of the knowledge in this area. RESULTS: OSCE examiners' assessment scores are influenced by factors belonging to 4 different domains: examination context, examinee characteristics, examinee-examiner interactions, and examiner characteristics. These domains are composed of several factors including halo, hawk/dove and OSCE contrast effects; the examiner's gender and ethnicity; training; lifetime experience in assessing; leadership and familiarity with students; station type; and site effects. CONCLUSION: Several factors may influence the presumed objectivity of examiners' assessments, and these factors need to be addressed to ensure the objectivity of OSCEs. We offer insights into directions for future research to better understand and address the phenomenon of examiner bias.

Odontología Basada en Evidencia: Las 82 Revistas de Mayor Impacto / Evidence Based Dentistry: The 82 Highest Impact Journals

La Odontología Basada en Evidencia es la aplicación clínica de las mejores evidencias científicas basadas en la experiencia del operador y en las expectativas del paciente. Estas evidencias científicas se presentan día a día en revistas indexadas alrededor del mundo con una actualización constante. El objetivo de la presente revisión es presentar y describir las características de las revistas de mayor impacto científico en el área de Odontología sirviendo como base para la mejor toma de decisiones clínicas en nuestros pacientes. La búsqueda de la información se realizó según el Indice de factor de impacto del ISI Web of Science 2014.

Evidence-Based Dentistry is the clinical application of the best scientific evidence based on operator experience and patient expectations. This everyday scientific evidence presented in indexed journals around the world with constantly updated. The aim of this review is to present and describe the characteristics of the scientific impact of journals in the field of Dentistry serving as a basis for better clinical decision making in our patients. The search for information was made according to index impact factor ISI Web of Science 2014.

PubMed alternatives to search MEDLINE: An environmental scan.

The prime objective of this article is to introduce the newer methods to access, search and process MEDLINE citations. It also aims to provide a brief overview of each service’s salient features. A targeted search was conducted in MEDLINE through the OVID gateway. This was followed with a search in Google Scholar as well as Google and Bing. Ninety‑two web‑based services that can be used to search MEDLINE were identified. The list was shortened to 24 by applying a set of relevancy criteria to select those services more relevant to general medical and dental users. Salient features of the selected services are outlined and a use case based classification of the system has been proposed to help dental practitioners and researchers select the appropriate service for a given purpose.

Analysis on source indexes for the coverage of Chinese medical journals in MEDLINE / 中华医学图书情报杂志

The source indexes for the coverage of Chinese biomedical journals in MEDLINE were analyzed and compared with the mean values of those for the journals in each subject,which showed that the number of MEDLINE-covered papers published in Chinese medical journals was small ( about 260 papers each year) , the number of au-thors in each paper was 5 and the number of references in each paper was 17 with a half-life of 6. 175 years. The MEDLINE-covered Chinese medical journals did not emphasize on the publication of papers from overseas. However, it seemed that they could attract more found-supported papers.

Análisis bibliométrico de la literatura económica en oncología / Bibliometric analysis of economic topics in oncology

Objetivo: Análisis descriptivo de la literatura biomédica indexada en Medline entre 2001 y 2010 sobre temas relacionados con aspectos económicos (estudios de costos o evaluaciones económicas) del cáncer . Metodología: Se realizaron búsquedas en la base de datos Medline a través de GoPubMed. La est r at egi a de búsqueda f ue: ("Neoplasms" [Majr] AND ("Costs and Cost Analysis"[Majr] OR "Economics"[ Majr] OR "economics"[Subheading])) AND Journal Article[ ptyp] AND "2001:2010"[dp]. Se ident ificaron, entre otras variables, número de publicaciones por año, tipos de cáncer estudiados, revistas, países de publicación y porcentaje de publicaciones sobre temas económicos relacionadas al total de publicaciones en cáncer. Resultados: Se recuperaron 5.886 referencias que tratan sobre aspectos económicos del cáncer . La tendencia fue al incremento del número de publicaciones, con un crecimiento en diez años de 86%. Se ident ificaron 1.309 revistas diferentes, Cancer con 190 publicaciones fue la revista con más publicaciones, seguida de Journal of Clinical Oncology con 135 y Pharmacoeconomics con 76 referencias. Estados Unidos fue el país más productivo con 2.453 publicaciones (41,6%); Colombia con 8 publicaciones, fue el tercer país latinoamericano. Los cánceres más invest igados fueron seno, con 1.239; colorrectal con 753; pulmón con 516, cérvix con 477, y próstata con 403. Conclusiones: El número de publicaciones sobre literatura económica del cáncer ha crecido sostenidamente durante el periodo estudiado. Las neoplasias de los países desarrollados son las más estudiadas. [Moreno ME, Rosselli DA. Análisis bibliométrico de temas económicos en oncología. MedUNAB 2012; 14:160-166].

Objetive: Descriptive analysis of Medline-i ndexedbiomedical literature on economic aspects of cancer (mainly cost studies or economic evaluations) published between 2001 and 2010. Methods: Using GoPubMed, we searched Medline using the following search strategy: ("Neoplasms"[Majr] AND ("Costs and Cost Analysis"[Majr] OR "Economics"[Majr] OR "economics"[Subheading])) AND Journal Article[ptyp] AND "2001:2010"[dp]. We identified the number of publications per year , types of cancer considered, journals where they were published, countries and percentage of publications on economic topics of all cancer related publications. Results: We retrieved 5.886 references on economic aspects of cancer . The number of publications increased 86% in the ten-year period. We identified 1.309 different journals; Cancer, with 190 publications, was the top journal, followed by the J o u r n a l o f C l i n i c a l O n c o l o g y w i t h 1 3 5 a n dPharmacoeconomics with 76. United States was the most productive country with 2.453 publications (41.6%); Colombia with 8 references,was the third Latin American country . The top cancer site was breast, with 1.239 references; colorectal with 753; lung with 516; cervical cancer with 477, and prostate with 403. Conclusions: The number of publications on economic aspects of cancer has grown steadily over the last decade. Research has concentrated on the cancers of developed countries. Moreno ME, Rosselli DA. Bibliometric analysis of economic topics in oncology . MedUNAB 2012; 14:160-166].

Medical papers related to keywords of vaccine and vaccination in KoreaMed database, Korea (1962-2012)

PURPOSE: To describe the present status and changing patterns of medical papers related to keywords of vaccine and vaccination published in Korea over the last 50 years, and provide basic data for future studies. MATERIALS AND METHODS: 185,603 papers are registered in the medical database KoreaMed, which is run by Korean Association of Medical Journal Editors. Among these papers, a search with the keywords vaccine or vaccination revealed a total of 1,089 articles which were published on vaccine and/or vaccination during the period of September 2, 1962 to April 30, 2012. Our study endeavors to analyze these 1,089 articles. RESULTS: Only one article published with the keywords vaccine and/or vaccination was published in the 1960s, and the number of journals steadily increased starting from the 1970s (24 articles) to 2 times, 10 times, 20 times in the 1980s, 1990s, and the 2000s (585 articles), respectively. The articles were classified into reviews (20.2%), original articles with clinical study (40.7%), original articles with experimental study (24.6%), and case reports (8.2%). The review articles mainly dealt with an overview. The original articles with clinical study were on epidemiology, effect and immunogenicity, clinical trial. Original articles with experimental study were mainly comprised of complication and overview. Articles on vaccine, pathogen or disease topics were mostly microorganisms such as bacteria or viruses, and studies on anti-cancer vaccines or vaccines of specific diseases were sparse. CONCLUSION: The above data reflects the clinical uses of vaccines in Korea and the history of vaccine studies. The number of vaccine-related articles is increasing rapidly since the first article was published in 1962. This implies that with the increase of studies of clinical trials, clinical uses and results and analyses of the results, articles relating to basic studies are also on the rise. We intend these findings to be of use to researchers in this active and expanding field.