Incidência de sífilis no estado do Rio de Janeiro e nomunicípio de Seropédica nos anos de 2010 a 2022 / Incidence of syphilis in the state of Rio de Janeiro andmunicipality of Seropédica in the years 2010 to 2022

Sífilis é uma infecção sexualmente transmissível (IST) que sinaliza a necessidade de efetivas políticas públicas devido ao aumento de casos na última década. Dessa forma, o objetivo do trabalho é descrever a incidência de sífilis no estado do Rio de Janeiro e no município de Seropédica. Métodos: foi realizado um estudo descritivo, com abordagem quantitativa. A coleta dos dados foi realizada por meio do Sistema de Informação de Agravos de Notificação (Sinan), referentes ao município de Seropédica e ao estado do Rio de Janeiro, no período de 2010 a 2022. Resultados: foram identificados 105.138, 79.609 e 42.819 casos de sífilis adquirida, em gestantes e congênita, respectivamente, no estado do Rio de Janeiro e 187, 140 e 79 casos de sífilis adquirida, em gestantes e congênita, respectivamente, no município de Seropédica. Foi observado uma incidência maior para sífilis adquirida entre homens em comparação com mulheres tanto no estado do Rio de Janeiro (62.719 versus 42.346) quanto no município de Seropédica (110 versus 77). Houve um aumento nas taxas de incidência de sífilis no estado do Rio de Janeiro e no município de Seropédica ao longo dos anos. Conclusão: a sífilis segue sendo uma doença com alta incidência no território do Rio de Janeiro. Nesse sentido, é importante elaborar estratégias em saúde pública mais efetivas às pessoas acometidas por tal infecção.

Syphilis is a sexually transmitted infection (STI) that signals the need for effective public policies due to the increase in cases in the last decade. Thus, the aim of this study is to describe the incidence of syphilis in the state of Rio de Janeiro and in the municipality of Seropédica. Methods: a descriptive study with a quantitative approach was carried out. Data collection was performed through the Sistema de Informação de Agravos de Notificação (Sinan), referring to the municipality of Seropédica and the state of Rio de Janeiro, from 2010 to 2022. Results: overall, 105.138, 79.609 and 42.819 cases of acquired syphilis, in pregnant women, and congenital syphilis, respectively, were identified in the state of Rio de Janeiro, and 187, 140, and 79 cases of acquired syphilis, in pregnant women, and congenital syphilis, respectively, were identified in the municipality of Seropédica. A higher incidence of acquired syphilis was observed among men compared to women both in the state of Rio de Janeiro (62.719 versus 42.346) and in the municipality of Seropédica (110 versus 77). There has been an increase in the incidence rates of syphilis in the state of Rio de Janeiro and the municipality of Seropédica over the years. Conclusion: syphilis continues to be a disease with a high incidence in the territory of Rio de Janeiro. In this sense, it is important to develop more effective public health strategies for people affected by this infection.

Tendencias y factores asociados al aumento de casos de dengue en Cochabamba: un estudio longitudinal 2019-2024 / Tendências e Fatores Associados ao Aumento de Casos de Dengue em Cochabamba: um Estudo Longitudinal 2019-2024 / Trends and Factors Associated with the Increase in Dengue Cases in Cochabamba: a Longitudinal Study 2019-2024

Introducción: el dengue, transmitido por el mosquito Aedes aegypti, es un problema de salud pública global creciente, especialmente en Cochabamba, donde factores climáticos y urbanización favorecen su proliferación. Entre 2020 y 2023, los casos aumentaron alarmantemente, subrayando la necesidad de vigilancia y prevención. Este estudio analizará las tendencias de 2019 a 2024, relacionando incidencia y lluvias. Metodología: este estudio cuantitativo, longitudinal y retrospectivo analizó las tendencias de casos sospechosos de dengue en Cochabamba de 2019 a 2024. Utilizó datos del formulario 302 del SNIS Bolivia, abarcando períodos epidemiológicos y de lluvia. Se realizó análisis descriptivo con SPSS y comparación con estudios previos para validar resultados y formular políticas de salud. Resultados: los datos semanales de dengue en Cochabamba, divididos en períodos inter-epidémicos y de lluvias, muestran un aumento significativo de casos en 2023-2024 (13,940 casos) comparado con años anteriores. Los picos más altos se observan durante el final del período de lluvias, especialmente en la semana 21 de 2023-2024, destacando la estacionalidad de la enfermedad. Discusión: el análisis de los casos sospechosos de dengue en Cochabamba (2019-2024) muestra un drástico aumento en 2023-2024, con 13,940 casos. Este incremento puede estar influenciado por el cambio climático, crecimiento urbano y variaciones en vigilancia epidemiológica. Los picos se concentran durante la temporada de lluvias, subrayando la necesidad de fortalecer medidas de control y prevención.

Introduction: dengue, transmitted by the Aedes aegypti mosquito, is a growing global public health problem, particularly in Cochabamba, where climatic factors and urbanization favor its proliferation. Between 2020 and 2023, cases increased alarmingly, underscoring the need for surveillance and prevention. This study will analyze trends from 2019 to 2024, correlating incidence with rainfall. Methodology: this quantitative, longitudinal, and retrospective study analyzed trends in suspected dengue cases in Cochabamba from 2019 to 2024. It used data from Form 302 of the SNIS Bolivia, covering epidemiological and rainy periods. Descriptive analysis was performed with SPSS and compared with previous studies to validate results and formulate health policies. Results: weekly dengue data in Cochabamba, divided into inter-epidemic and rainy periods, show a significant increase in cases in 2023­2024 (13,940 cases) compared to previous years. The highest peaks are observed during the end of the rainy period, especially in week 21 of 2023-2024, highlighting the seasonality of the disease. Discussion: the analysis of suspected dengue cases in Cochabamba (2019-2024) shows a drastic increase in 2023­2024, with 13,940 cases. This increase may be influenced by climate change, urban growth, and variations in epidemiological surveillance. The peaks are concentrated in the rainy season, emphasizing the need to strengthen control and prevention measures.

Introdução: a dengue, transmitida pelo mosquito Aedes aegypti, é um crescente problema de saúde pública global, especialmente em Cochabamba, onde fatores climáticos e urbanização favorecem sua proliferação. Entre 2020 e 2023, os casos aumentaram alarmantemente, sublinhando a necessidade de vigilância e prevenção. Este estudo analisará as tendências de 2019 a 2024, correlacionando incidência e chuvas. Metodologia: este estudo quantitativo, longitudinal e retrospectivo analisou as tendências de casos suspeitos de dengue em Cochabamba de 2019 a 2024. Utilizou dados do formulário 302 do SNIS Bolívia, abrangendo períodos epidemiológicos e de chuva. Foi realizada análise descritiva com SPSS e comparação com estudos anteriores para validar os resultados e formular políticas de saúde. Resultados: os dados semanais de dengue em Cochabamba, divididos em períodos inter-epidêmicos e de chuvas, mostram um aumento significativo de casos em 2023-2024 (13.940 casos) em comparação com anos anteriores. Os picos mais altos são observados durante o final do período de chuvas, especialmente na semana 21 de 2023-2024, destacando a sazonalidade da doença. Discussão: A análise dos casos suspeitos de dengue em Cochabamba (2019-2024) mostra um aumento drástico em 2023-2024, com 13.940 casos. Este aumento pode estar influenciado pelas mudanças climáticas, crescimento urbano e variações na vigilância epidemiológica. Os picos se concentram durante a temporada de chuvas, sublinhando a necessidade de fortalecer as medidas de controle e prevenção

Incidencia de diabetes gestacional en Chile durante el periodo 2001-2022 / Incidence of gestational diabetes in Chile during the period 2001-2022

Introducción: La diabetes mellitus gestacional (DG) se define como una hiperglucemia que se diagnostica por primera vez durante la gestación. Objetivo: Describir la incidencia de diabetes gestacional (DG) durante el periodo 2001-2022 en Chile. Método: Estudio observacional, descriptivo, ecológico y longitudinal. Se incluyeron los egresos hospitalarios consignados como diabetes durante el embarazo y DG en el periodo 2001-2022, de la base de datos del Departamento de Estadística e Información en Salud. Se determinó la incidencia de DG por la cantidad de partos institucionalizados, para cada año. Se analizaron la tendencia en el periodo y las diferencias entre regiones. Resultados: Se determinó un aumento de 2,615 casos de DG por 1000 partos atendidos por año en el periodo 2001-2022. En particular, en el periodo 2016-2022 la incidencia aumentó hasta 6,746 casos de DG por 1000 partos por año. En el año 2022, la región de La Araucanía presentó una incidencia de 284,4 casos por 1000 partos, lo que representa un aumento del 503% en relación con la incidencia media nacional (56,5 casos por 1000 partos). Conclusiones: Se demuestra un aumento significativo de la DG, en especial desde 2016. La situación en La Araucanía podría relacionarse con los niveles de pobreza multidimensional.

Introduction: Gestational diabetes mellitus (GDM) is defined as hyperglycemia first diagnosed during pregnancy. Objetive: To describe the incidence of gestational diabetes (GD) during the period 2001-2022 in Chile. Method: Observational, descriptive, ecological, longitudinal study. Hospital records of diabetes during pregnancy and GD in the period 2001-2022 were included, from the database of the Department of Statistics and Health Information. The incidence of GD was determined by the number of births, for each year. Trends in the period and differences between regions were analysed. Results: The results show an increase of 2.615 GD cases per 1000 births per year in the period 2001-2022. Particularly, in the period 2016-2022 the incidence increased to 6.746 cases of GD per 1000 births per year. In 2022, La Araucanía region presented an incidence of 284.4 cases per 1000 births, which represents an increase of 503% in relation to the mean national incidence (56.5 cases per 1000 births). Conclusions: A significant increase in DG is demonstrated, especially since 2016. The situation in La Araucanía could be related to the levels of multidimensional poverty.

Reduction in the incidence of invasive infections caused by encapsulated bacteria after the onset of the COVID-19 pandemic / Reducción de la incidencia de infecciones invasivas por bacterias capsuladas luego del inicio de la Pandemia por COVID-19

Abstract Interaction between severe acute respiratory coronavirus 2 (SARS-CoV-2) and IIEB remains under investigation. Objective: to compare IIEB incidence before and during COVID-19 pandemic, and assess incidence of coinfection with COVID-19 and case fatality. A cross-sectional study was performed on data from a centralized microbiology laboratory serving a network of healthcare centers comprising 713 pediatric and adult inpatient beds, expanded by 20% during the pandemic. Three periods were evaluated: (1) pre-pandemic: March 1, 2019-February 29, 2020; (2) pandemic year 1: March 1, 2020-February 28, 2021; (3) pandemic year 2: March 1, 2021-July 31, 2021. Descriptive statistical analysis was performed. 56502 samples (96% blood cultures) from 27224 patients were analyzed. Of these, 54 samples (from 54 patients) were positive for encapsulated bacteria. IIEB incidence was: 167.4, 32.6, and 50.4 per 100000 samples for periods 1, 2, and 3, respectively. Twelve IIEB episodes occurred during the pandemic period: 10 Streptococcus pneumoniae, and 2 Haemophilus influenzae, of which 7 were SARS-CoV-2/S. pneumoniae coinfections, with an incidence of 5.68 per 10000 COVID-19-related hospitalizations (0.056%). IIEB case fatality was 31%, 29%, and 60% for each period, respectively, 3/7 patients with coinfection died (43%). Case fatality for invasive pneumococcal disease (IPD) in patients without COVID-19, was 32.5%. Significant reduction in IIEB incidence was observed during the pandemic, coinciding with implementation of containment measures. The incidence of SARS-CoV-2/S. pneumoniae coinfection was low, with higher case fatality than IPD patients without COVID-19.

Resumen La interacción entre SARS-CoV-2 e infecciones invasivas por bacterias capsuladas (IIBC) continúa bajo estudio. Objetivos: comparar la incidencia de IIBC antes y durante la pandemia por COVID-19, evaluar la incidencia de coinfección con COVID-19 y la letalidad. Estudio transversal de registros de un laboratorio centralizado de Microbiología, que asiste a una red de centros asistenciales con 713 camas de internación para adultos y pediátricos, expandida 20% durante la pandemia. Tres periodos evaluados: 1) Pre-pandemia: 1-Marzo-2019 al 29-Febrero-2020; 2) Primer año de Pandemia: 1-Marzo-2020 al 28-Febrero-2021; 3) Pandemia 2021: 1-Marzo-2021 al 31-Julio-2021. Análisis estadístico descriptivo: Se analizaron 56.502 muestras (96% hemocultivos) correspondientes a 27.224 pacientes. De estas, 54 muestras (de 54 pacientes) fueron positivas para bacterias capsuladas. La incidencia de IIBC fue 167,4, 32,6 y 50,4 por cada 100.000 muestras para los periodos 1, 2 y 3, respectivamente. Doce IIBC ocurrieron durante la pandemia: 10 Streptococcus pneumoniae y dos Haemophilus influenzae, siete de ellos corresponden a coinfección SARS-CoV-2/S. pneumoniae, con una incidencia de 5,68 por cada 10.000 internaciones por COVID 19 (0,056%). La letalidad de las IIBC fue de 31, 29 y 60% para los tres periodos, respectivamente, 3/7 coinfectados fallecieron (43%). La letalidad por enfermedad neumocócica invasiva (ENI), sin COVID fue de 32,5%. Se evidenció una reducción significativa de la incidencia de IIBC luego del comienzo de la pandemia, coincidente con la implementación de las medidas sanitarias de contención de la pandemia. La incidencia de coinfección de SARS-CoV-2/S. pneumoniae fue baja y presentó mayor letalidad que las ENI sin COVID-19.

Estadio, perfil biológico y tendencias de incidencia y mortalidad de cáncer de mama en Uruguay: análisis por franjas etarias / Stage, biological profile and trends in the incidence and mortality of breast cancer in Uruguay: analysis by age groups / Estágio, perfil biológico e tendências da incidência e mortalidade por cáncer de mama no Uruguai: análise por faixa etária

Introducción: el cáncer de mama es el tumor maligno más frecuente y la primera causa de muerte por cáncer en mujeres en Uruguay y en el mundo. La evidencia epidemiológica sugiere que el cáncer de mama en diferentes grupos de edades se comportaría como patologías distintas. El objetivo de este trabajo es caracterizar el cáncer de mama en Uruguay para diferentes estratos de edades. Material y método: se analizaron las tendencias temporales de la incidencia de cáncer de mama en mujeres en Uruguay en el período 2002-2019, y de la mortalidad por esta causa en 1990-2020. Para el quinquenio 2015-2019, se analiza además la distribución de estadios al diagnóstico y de perfiles biológicos (luminales, triple negativos y HER2 positivos). Se analizan tres segmentos de edades: mujeres de 20 a 44 años, de 45 a 69 y de 70 y más años. Resultados: las tasas de incidencia para el conjunto de edades se presentaron estables en el período 2002-2019, mientras que la mortalidad presenta una tendencia decreciente en el período 1990-2020. En las mujeres menores de 45 años se encuentra un aumento en la incidencia, con mortalidad que decrece hasta el 2010, seguido de una estabilización de las tasas; en las mujeres de 45 a 69 años la incidencia se mantiene estable y la mortalidad decrece; en las mayores de 70 años, la incidencia decrece mientras la mortalidad se mantiene estable. Más del 70% de los casos se diagnostican en estadios I y II. Los tumores luminales (receptores hormonales positivos, HER2 negativos) son el subtipo más frecuente para todos los grupos, la proporción de tumores con estas características aumenta con la edad, mientras decrece la proporción de HER2 positivo y triple negativo. Conclusión: en las mujeres uruguayas el cáncer de mama presenta características diferenciales para las tres franjas de edades analizadas.

Introduction: Breast cancer is the most common malignant tumor and the leading cause of cancer death in women in Uruguay and worldwide. Epidemiological evidence suggests that breast cancer in different age groups behaves as distinct pathologies. The objective of this work is to characterize breast cancer in Uruguay for different age groups. Method: Temporal trends in the incidence of breast cancer in women in Uruguay are analyzed for the period 2002-2019, along with mortality trends for this cause from 1990 to 2020. For the five-year period 2015-2019, the distribution of stages at diagnosis and biological profiles (Luminal, Triple-negative, and Her2 positive) is also analyzed. Three age segments are analyzed: women aged 20 to 44 years, 45 to 69 years, and 70 years and older. Results: The incidence rates for all age groups remained stable during the period 2002-2019, while mortality showed a decreasing trend in the period 1990-2020. In women under 45, there is an increase in incidence, with mortality decreasing until 2010, followed by a stabilization of rates; in women aged 45 to 69, incidence remains stable and mortality decreases; in those over 70, incidence decreases while mortality remains stable. More than 70% of cases are diagnosed at stages I and II. Luminal tumors (hormone receptor positive, Her2 negative) are the most frequent subtype for all age groups. The proportion of tumors with these characteristics increases with age, while the proportion of Her2 positive and triple-negative tumors decreases. Conclusions: In Uruguayan women, breast cancer presents differential characteristics for the three age groups analyzed.

Introdução: O câncer de mama é o tumor maligno mais comum e a principal causa de morte por câncer em mulheres no Uruguai e no mundo. Evidências epidemiológicas sugerem que o câncer de mama se comportaria como patologias distintas em diferentes faixas etárias. O objetivo deste trabalho é caracterizar o câncer de mama no Uruguai para diferentes faixas etárias. Materiais e Métodos: São analisadas as tendências temporais da incidência de câncer de mama em mulheres no Uruguai no período 2002-2019 e a mortalidade por esta causa no período 1990-2020. Para o quinquénio 2015-2019 são também analisadas a distribuição dos estádios ao diagnóstico e os perfis biológicos (Luminal, Triplo negativo e Her2 positivo). São analisados três segmentos etários: mulheres dos 20 aos 44 anos, dos 45 aos 69 anos e dos 70 anos ou mais. Resultados: As taxas de incidência para todas as idades permaneceram estáveis no período 2002-2019 enquanto a mortalidade apresentou tendência decrescente no período 1990-2020. Nas mulheres com menos de 45 anos verifica-se um aumento da incidência, com uma redução da mortalidade até 2010, seguida de uma estabilização das taxas; nas mulheres de 45 a 69 anos, a incidência permanece estável e a mortalidade diminui; nas pessoas com mais de 70 anos, a incidência diminui enquanto a mortalidade permanece estável. Mais de 70% dos casos são diagnosticados nos estágios I e II. Os tumores luminais (receptor hormonal positivo, Her2 negativo) são o subtipo mais comum para todos os grupos sem do que a proporção de tumores com essas características aumenta com a idade, enquanto a proporção de (Her2 positivo e triplo negativo) diminui. Conclusão: Nas mulheres uruguaias, o câncer de mama apresenta características diferenciadas para as três faixas etárias analisadas.

Hepatitis C virus infection:surveillance report from China Healthcare-as-sociated Infection Surveillance System in 2020 / 中国感染控制杂志

Objective To investigate the infection status and changing trend of hepatitis C virus(HCV)infection in hospitalized patients in medical institutions,and provide reference for formulating HCV infection prevention and control strategies.Methods HCV infection surveillance results from cross-sectional survey data reported to China Healthcare-associated Infection(HAI)Surveillance System in 2020 were summarized and analyzed,HCV positive was serum anti-HCV positive or HCV RNA positive,survey result was compared with the survey results from 2003.Results In 2020,1 071 368 inpatients in 1 573 hospitals were surveyed,738 535 of whom underwent HCV test,4 014 patients were infected with HCV,with a detection rate of 68.93％and a HCV positive rate of 0.54％.The positive rate of HCV in male and female patients were 0.60％and 0.48％,respectively,with a statistically sig-nificant difference(x2=47.18,P＜0.001).The HCV positive rate in the 50-＜60 age group was the highest(0.76％),followed by the 40-＜50 age group(0.71％).Difference among all age groups was statistically signifi-cant(x2=696.74,P＜0.001).In 2003,91 113 inpatients were surveyed.35 145 of whom underwent HCV test,resulting in a detection rate of 38.57％;775 patients were infected with HCV,with a positive rate of 2.21％.In 2020,HCV positive rates in hospitals of different scales were 0.46％-0.63％,with the highest in hospital with bed numbers ranging 600-899.Patients'HCV positive rates in hospitals of different scales was statistically signifi-cant(X2=35.34,P＜0.001).In 2020,12 provinces/municipalities had over 10 000 patients underwent HCV-rela-ted test,and HCV positive rates ranged 0.19％-0.81％,with the highest rate from Hainan Province.HCV posi-tive rates in different departments were 0.06％-0.82％,with the lowest positive rate in the department of pedia-trics and the highest in the department of internal medicine.In 2003 and 2020,HCV positive rates in the depart-ment of infectious diseases were the highest,being 7.95％and 3.48％,respectively.Followed by departments of orthopedics(7.72％),gastroenterology(3.77％),nephrology(3.57％)and general intensive care unit(ICU,3.10％)in 2003,as well as departments of gastroenterology(1.35％),nephrology(1.18％),endocrinology(0.91％),and general intensive care unit(ICU,0.79％)in 2020.Conclusion Compared with 2003,HCV positive rate decreased significantly in 2020.HCV infected patients were mainly from the department of infectious diseases,followed by departments of gastroenterology,nephrology and general ICU.HCV infection positive rate varies with gender,age,and region.

Effect of hand hygiene intervention on healthcare-associated case infection incidence from 2014 to 2022 / 中国感染控制杂志

Objective To observe the effect of multi-modal hand hygiene(HH)intervention on HH compliance,as well as the relationship between HH compliance and the healthcare-associated(HA)case infection incidence.Methods From 2014 to 2022,the infection control team in a tertiary first-class hospital implemented multi-modal HH intervention for health care workers(HCWs).The changing trend of HH monitoring data,the correlation be-tween HH compliance rate and HA case infection incidence were analyzed retrospectively.Results The consump-tion of HH products in the wards showed a stable upward trend;HH compliance rate increased from 64.98％in 2014 to 85.01％in 2022(P＜0.001),and HA case infection incidence decreased from 1.21％to 0.83％(P＜0.05).HH compliance rate was negatively correlated with HA case infection incidence(r=-0.369,P=0.027).HH compliance rates in different regions and job posts in each quarter were increased(P＜0.001).For 5 different HH moments in each quarter,HH compliance rate fluctuated slightly before sterile manipulation and after touching patient;presented rising trend after touching surroundings around patient,and decreased before touching patient and after touching patient's body fluid since 2020(P＜0.001).Conclusion Multi-modal HH intervention can im-prove the HH compliance of HCWs,improving their HH awareness is conducive to reducing HA case infection incidence.

Epidemic prediction method based on multi-source data fusion / 中国医学物理学杂志

A combined epidemic prediction method based on multi-source data fusion is presented to address the common problems of low accuracy,weak generalization,single structure,poor nonlinear processing ability,and long prediction time in traditional epidemic prediction models.The collected multi-source epidemic data are normalized and subjected to feature selection using principal component analysis.An ARIMA-GM-BPNN model for pandemic prediction is constructed by combining ARIMA model,grey GM model and BPNN.The fitting values of the first two prediction models are used as inputs to BPNN for model training.After sufficiently integrating the data and combining the advantages of different prediction models,the optimal combined model is obtained and used for forecasting the incidence and trend of epidemics.Experimental results show that the combined model exhibits excellent fitting performance,with predicted incidences and trends consistent with the real conditions.The proposed approach improves prediction accuracy and generalization capabilities,and it can provide reliable data support for epidemic prediction and control.

Clustering analysis of risk factors in high-incidence areas of esophageal cancer in Yanting county / 中国胸心血管外科临床杂志

@#Objective To investigate the dietary patterns of rural residents in the high-incidence areas of esophageal cancer (EC), and to explore the clustering and influencing factors of risk factors associated with high-incidence characteristics. Methods A special structured questionnaire was applied to conduct a face-to-face survey on the dietary patterns of rural residents in Yanting county of Sichuan Province from July to August 2021. Univariate and multivariate logistic regression models were used to analyze the influencing factors of risk factor clustering for EC. Results There were 838 valid questionnaires in this study. A total of 90.8% of rural residents used clean water such as tap water. In the past one year, the people who ate fruits and vegetables, soybean products, onions and garlic in high frequency accounted for 69.5%, 32.8% and 74.5%, respectively; the people who ate kimchi, pickled vegetables, sauerkraut, barbecue, hot food and mildew food in low frequency accounted for 59.2%, 79.6%, 68.2%, 90.3%, 80.9% and 90.3%, respectively. The clustering of risk factors for EC was found in 73.3% of residents, and the aggregation of two risk factors was the most common mode (28.2%), among which tumor history and preserved food was the main clustering pattern (4.6%). The logistic regression model revealed that the gender, age, marital status and occupation were independent influencing factors for the risk factors clustering of EC (P<0.05). Conclusion A majority of rural residents in high-incidence areas of EC in Yanting county have good eating habits, but the clustering of some risk factors is still at a high level. Gender, age, marital status, and occupation are influencing factors of the risk factors clustering of EC.

Epidemiological characteristics and genotype of norovirus outbreaks in schools in Xicheng District of Beijing from 2017 to 2022 / 中国学校卫生

Objective@#To analyze the epidemiological and molecular characteristics of norovirus outbreaks in schools in Xicheng District of Beijing from 2017 to 2022, so as to provide evidence for the prevention and control of norovirus outbreaks in schools.@*Methods@#Data of norovirus outbreaks in schools in Xicheng District, Beijing during 2017 to 2022 were collected and analyzed by descriptive epidemiological methods. Realtime PCR was used to detect the nucleic acid of group GⅠand GⅡnorovirus, the positive norovirus nucleic acid samples were sent to Beijing Center for Disease Control and Prevention for molecular typing.@*Results@#From 2017 to 2022, 185 norovirus outbreaks were reported in schools in Xicheng District, including 166 cluster outbreaks and 19 outbreaks. A total of 2 044 cases were reported, with a total attack rate of 13.92%. There were two peaks in the outbreak time, which were from March to June after the spring semester and from October to December after autumn semester. Primary schools were the most common place of occurrence (101 cases), followed by nursery institutions (68 cases) and secondary schools (16 cases). There were statistically significant differences in the incidence rates among different sites(12.37%, 22.78%, 8.47%, χ2=263.34, P<0.01). There were significant differences in the incidence of vomiting, diarrhea, nausea and stomachache among different students (χ2=263.33, 90.58, 20.42, 30.29, P<0.01). Vomiting was the main symptom in primary school and nursery school children (96.41%, 98.28%), and the diarrhea rate was higher in middle school students (68.22%). The outbreaks were mainly caused by type GⅡ norovirus. The genotype from 2017 to 2021 showed the characteristics of diversity, mainly GⅡ.2[P16], but there was no significant advantage for the GⅡ.2 [P16] during 2019 to 2021.@*Conclusions@#The norovirus outbreak in schools in Xicheng district of Beijing from 2017 to 2022 are mainly caused by GⅡ type genome. The main genotype is GⅡ.2[P16]. Norovirus infection mainly occurred in primary schools and kindergartens. For the vulnerable populations, it is necessary to improve the capacity to early identification, student infectious disease management, active infection control and prevention measures, and pathogen surveillance and sporadic case monitoring.

Risk factors for developmental dysplasia of the hip in infants in Yili area / 公共卫生与预防医学

Objective To investigate the in-hospital screening results of developmental dysplasia of the hip (DDH) in infants and young children in Ili area, and to analyze the risk factors affecting the occurrence of DDH. Methods According to the cluster sampling method 5 536 infants and young children who underwent DDH screening in the pediatric outpatient department and orthopedic outpatient department of our hospital from December 2019 to June 2022 were selected as the research objects. The children who met the diagnostic criteria of DDH were selected as the observation group (n=35), and 100 normal children were selected as the control group. Univariate and multivariate analysis were used to determine the independent risk factors affecting the occurrence of DDH in infants. Results Among the 39 cases were positive in primary screening, 35 cases were positive in secondary screening, and the positive rate was 6.32‰ . The results of single factor analysis showed that the proportion of women, second birth and above, caesarean section, breech delivery, family history, high altitude area, living environment room temperature °C, and leg binding when swaddling in the observation group was higher than that in the control group (P°C and leg binding in infants are related to the occurrence of DDH in infants, which can provide some reference for clinical screening, diagnosis and treatment.

Incidence and prognosis of olfactory,gustatory and auditory dysfunctions related to infection of COVID-19 Omicron strain:A network-based survey / 中国耳鼻咽喉头颈外科

OBJECTIVE To determine the incidence and prognosis of olfactory,gustatory and auditory dysfunctions related to the COVID-19 Omicron strain infection.METHODS A cross-sectional investigation was performed through online questionnaires.Data of patients with Omicron strain infection from December 24th,2022 to January 2nd,2023 were collected.The visual analogue scale(VAS)was used to evaluate the self-reported olfactory,gustatory and auditory functions of patients.RESULTS A total of 869 valid questionnaires were obtained.The incidence of otolaryngology-related symptoms associated with omicron strain infection was 96.8%.The incidence of olfactory,gustatory and auditory dysfunction was 44.4%,44.2%and 10.7%,respectively.There were statistically significant differences(P<0.001)in VAS scores for olfactory,gustatory,and auditory impairments between all surveyed individuals before and after infection,as well as in the corresponding VAS scores for those who experienced these impairments.The median duration of olfactory,gustatory and auditory dysfunction were 5,4 and 3 days,respectively.CONCLUSION The incidence of olfactory,gustatory,and auditory impairments is high after Omicron infection,with most cases experiencing rapid spontaneous improvement.For the long-term symptoms,the otolaryngology doctors are responsible for exploring and developing effective intervention measures.

Comparative analysis of lung cancer incidence and mortality trends and risk factors in China and the United States based on GBD data / 国际肿瘤学杂志

Objective:To conduct comparative analysis of lung cancer incidence and mortality, as well as long-term trends in incidence and mortality rates and risk factors in China and the United States from 1990 to 2019 based on data from the Global Burden of Disease Study 2019 (GBD 2019) .Methods:The GBD 2019 database was used to extract new lung cancer cases, deaths, and age-standardized rate data for the analysis of lung cancer incidence and deaths in China and the United States based on different sex and age groups from 1990 to 2019. Joinpoint software was used to calculate and analyze annual percentage change (APC) and average annual percentage change (AAPC) of age-standardized incidence rate (ASIR) and age-standardized mortality rate (ASMR) of lung cancer in China and the United States from 1990 to 2019, and to analyze the long-term trends. Risk factors associated with lung cancer mortality in China and the United States were analyzed using the disability-adjusted life years (DALYs) .Results:New cases of lung cancer in China increased from 257 000 cases in 1990 to 832 900 cases in 2019, and ASIR increased from 30.20/100 000 in 1990 to 41.71/100 000 in 2019; deaths increased from 256 300 cases in 1990 to 757 200 cases in 2019, and ASMR increased from 31.18/100 000 in 1990 to 38.70/100 000 in 2019. ASIR and ASMR for lung cancer in the United States showed a decreasing trend from 1990 to 2019, with ASIR decreasing from 58.87/100 000 in 1990 to 45.13/100 000 in 2019, and ASMR decreasing from 49.35/100 000 in 1990 to 36.11/100 000 in 2019. In terms of gender, the disease burden of lung cancer in Chinese males was higher than that of females in 1990 and 2019, with new cases of lung cancer in males rising from 179 000 in 1990 to 576 200 in 2019, and ASIR rising from 44.29/100 000 in 1990 to 61.74/100 000 in 2019, mortality rising from 177 900 in 1990 to 523 200 in 2019, and ASMR rising from 46.33/100 000 in 1990 to 58.10/100 000 in 2019. The number of new cases of lung cancer in Chinese females rose from 78 100 in 1990 to 256 700 in 2019, and ASIR rose from 18.01/100 000 in 1990 to 24.76/100 000 in 2019; the number of deaths rose from 78 400 in 1990 to 234 000 in 2019, and ASMR rose from 18.63/100 000 in 1990 to 22.86/100 000 in 2019. In 2019, lung cancer incidence rates for males and females in China and the United States showed an increasing and then decreasing trend with age, with incidence rates of lung cancer in Chinese males and females peaking in the age group of 85-89 years old; and in the United States, incidence rates of lung cancer in males peaked in the age group of 85-89 years old, and incidence rates of females peaked in the age group of 80-84 years old. In 2019, it was shown that mortality rate of lung cancer among males in China increased and then decreased with age, reaching a peak in the age group of 85-89 years old, and mortality rate of lung cancer among females increased with age, reaching a peak in the age group of ≥95 years old. In the United States, lung cancer mortality rate for males and females showed an increasing and then decreasing trend with age, peaking in the 85-89 and 80-84 age groups, respectively. Incidence and mortality rates were higher for males than females in all age groups in China and the United States in 1990 and 2019. The analysis results of Joinpoint software showed that ASIR and ASMR of lung cancer in China showed an overall increasing trend from 1990 to 2019, with an AAPC of 1.16% (95% CI: 0.93%-1.38%, P<0.001) for ASIR and 0.78% (95% CI: 0.56%-1.01%, P<0.001) for ASMR, with the most obviously increasing trend in ASIR and ASMR from 1997 to 2004, the APC were 2.84% and 2.58%, respectively. Lung cancer ASIR and ASMR in the United States population showed a decreasing trend, with an AAPC of -1.08% (95% CI: -1.20%-0.96%, P<0.001) for ASIR and -1.05% (95% CI: -1.24%--0.87%, P<0.001) for ASMR. In 1990 and 2019, the major mortality-related risk factor for lung cancer in China and the United States was smoking, and the major mortality-related risk factor for lung cancer in Chinese females was environmental particulate matter pollution. Conclusion:ASIR and ASMR of lung cancer in China show an increasing trend from 1990 to 2019, and ASIR and ASMR of lung cancer in the United States show a decreasing trend. In 2019, incidence rate of lung cancer in males and females in China show an increasing and then decreasing trend with age, mortality rate of lung cancer for males show an increasing and then decreasing trend with age, and mortality rate of lung cancer for females show an increasing trend with age. Lung cancer incidence and mortality rates for males and females in the United States in 2019 show an increasing and then decreasing trend with age. In both 1990 and 2019, incidence rates and mortality rates are higher for males than for females in all age groups in both China and the United States. Smoking is the major mortality-related risk factor for lung cancer in China and the United States, and environmental particulate matter pollution is the major mortality-related risk factor for lung cancer in Chinese females.

The epidemiology and prediction of brain tumors incidence and mortality in China / 基础医学与临床

Objective To describe the incidence and mortality of brain tumors in China in 2020 and to predict the disease burden up to 2040.Methods The brain tumor incidence and mortality in 2020 were recorded based on the data from International Agency for Cancer Research(IARC),Cancer Today database.The incidence and mortality were standardized by age using Segi's world standard population.The burden of brain tumors in 2040 was predicted with assuming that national rates remained constant in 2020.Results It was estimated there were approximately 79 600 new brain tumors cases and 65 200 deaths in China in 2020.The age-standardized incidence and mortality rates of brain tumors in China were 4.1/100 000 and 3.2/100 000,respectively,which were lower than the United States of America,most of European countries and Australia.The incidence and mortality were higher than Africa,central America,and the Caribbean.From 2020 to 2040,the brain tumors cases and deaths are predicted to have an increase as 32.1%and 41.5%respectively.Conclusions The disease burden of brain tumors was still heavy in China.Further studies are urgently needed to clarify the epidemic trend of tissue typing and risk factors of brain tumors,which may support the development of effective prevention strategies.

Analysis of disease burden of testicular cancer in China from 1990 to 2019 / 解放军医学杂志

Objective To analyze the burden and changing trend of testicular cancer in China from 1990 to 2019.Methods Based on the 2019 Global Burden of Disease Database(GBD 2019),analyze the incidence,mortality,disability-adjusted life years(DALYs),years of life lost(YLLs),years lived with disability(YLDs)and their variation trend of testicular cancer in Chinese population from 1990 to 2019.Evaluating changes in age standardized rate(ASR)by calculating annual estimated percentage change(EAPC).According to the age grouping,analyze the age distribution characteristics of testicular cancer disease burden by age group.Results In 2019,the incident cases,deaths,age-standardized incidence rate,and age-standardized mortality rate of testicular cancer in China were 17.17×103,1.21×103,2.39/105,and 0.16/105,respectively.Compared to 1990,incident cases,deaths,and age-standardized incidence rate increased obviously in China,which was consistent with the global change trend,while the increase was higher than the global level.However,both Chinese and global age-standardized mortality rate showed a downward trend.From 1990 to 2019,DALYs,YLLs and YLDs of testicular cancer increased by 29.66%,9.83%and 720.91%respectively in China.The two age groups,0-15 years group and 30-35 years group,were with highest incidence of testicular cancer,while the highest disease burden of testicular cancer was 30-35 years.Conclusion From 1990 to 2019,the disease burden of testicular cancer in China showed an upward trend.Adolescents and young adults should be the priority population for screening and prevention due to their higher incidence and disease burden.

Research progress on dental materials for preventing root caries / 口腔疾病防治

@#The high incidence and untreated rate of root caries, a common and frequently occurring oral disease with challenging treatment in elderly individuals, is the main cause of tooth loss among elderly people, as rapid development results in pulpitis and periapical periodontitis or residual crown and root, which has been regarded as one of the common chronic oral diseases seriously affecting the quality of life of elderly people. Thus, early intervention and prevention are important. Traditional dental materials for preventing root caries have been widely used in clinical practice; however, they have the disadvantages of tooth coloring, remineralization and low sterilization efficiency. A series of new dental materials for preventing root caries have gradually become a research hotspot recently, which have the advantages of promoting the mineralization of deep dental tissue, prolonging the action time and enhancing adhesion. Future caries prevention materials should be designed according to the characteristics of root surface caries and the application population and should be developed toward simplicity, high efficiency and low toxicity. This review describes current research regarding anti-caries prevention material application, serving as a theoretical underpinning for the research of root caries prevention materials, which is important for both promotion in the effective prevention of root caries and improvement in the status of oral health and the quality of life among old people.

Trend analysis of chronic kidney disease incidence and mortality in Chinese population based on age-period-cohort model / 公共卫生与预防医学

Objective To investigate the changing trend and epidemiological characteristics of the incidence and mortality of chronic kidney disease (CKD) with age, period and birth cohort in Chinese population. Methods Based on the data of incidence and mortality of CKD in Chinese population aged 20-80 years from 1990 to 2019 in GHDx database, joinpoint regression model was used to analyze the incidence and mortality trend of CKD. An age-period-cohort model was constructed to analyze the effects of age, period, and birth cohort on the trend of CKD incidence and mortality. Results Joinpoint regression analysis showed that the standardized incidence rate of chronic kidney disease in Chinese population increased from 146.37/100 000 in 1990 to 161.52/100 000 in 2019, while the standardized mortality rate decreased from 12.98/100 000 in 1990 to 11.23/100 000 in 2019. The APC model analysis showed that the risk of CKD incidence and death in the Chinese population increased with age, while the risk of CKD incidence increased with the increase of period. The risk of death did not change significantly with the increase of period. The cohort born later had a lower risk of CKD incidence and death compared to the cohort born earlier. Conclusion At present, the age effect and period effect of the incidence and death risk of chronic kidney disease in China are dominant. It is important to take effective measures and intervene in a timely manner, especially to strengthen the protection of older high-risk groups born earlier.

Disease burden and mortality forecast of prostate cancer in Wuhan in 2010-2019 / 公共卫生与预防医学

Objective To analyze the data of prostate cancer in Wuhan from 2010 to 2019, understand the characteristics and trends of incidence, mortality, and YLL, and provide decision-making basis for Wuhan's cancer prevention and control strategies. Methods Data on deaths and incident cases of prostate cancer in Wuhan from 2010 to 2019 and from 2013 to 2017, respectively, were collected from the Wuhan Death Monitoring System. Indicators such as incidence rate, mortality rate, and years of life lost due to premature death (YLL) of prostate cancer in Wuhan were calculated using Excel 2016 and Python. The Bayesian Age-Period-Cohort Model (BAPC) was used to predict the mortality rate of prostate cancer in Wuhan from 2020 to 2024. The trend changes were described using the annual average percentage change (AAPC). Results From 2010 to 2019, the incidence, mortality, and YLL rates of prostate cancer in Wuhan showed an overall increasing trend (AAPC >0, P <0.05). The standardized mortality and incidence rates in the central urban area were significantly higher than those in the outer urban area, and the age group of 85 and above had the highest incidence and mortality rates. The age group of 0-54 had the largest increase in incidence and mortality rates. From 2020 to 2024, prostate cancer in Wuhan is expected to continue to increase slightly (an increase of 0.94%). Conclusion The incidence, mortality, and YLL rates of prostate cancer in Wuhan are showing an overall increasing trend, and this trend may continue. The characteristics are higher in the central urban area than in the outer urban area, and higher in the older age group than in the younger age group. Targeted measures need to be taken, and screening for high-risk populations should be strengthened.

Epidemiological characteristics of acute hepatitis B in Jiangxi Provincefrom 2014 to 2021 / 预防医学

Objective @#To learn the epidemiological characteristics of acute hepatitis B in Jiangxi Province from 2014 to 2021, so as to provide insights into perfecting hepatitis B prevention and control strategy.@*Methods@#Data pertaining to acute hepatitis B was collected through the Chinese Disease Prevention and Control Information System. The temporal, spatial and population distributions of acute hepatitis B were analyzed using a descriptive epidemiological method. The trend in incidence of acute hepatitis B was analyzed using annual percent change (APC). @*Results@#Totally 8 890 cases of acute hepatitis B were reported in Jiangxi Province from 2014 to 2021, with the reported incidence showing a tendency towards a decline (APC=-11.730%, P<0.05). The average annual reported incidence rate of acute hepatitis B was 2.42/105. Acute hepatitis B occurred all the year round, without obvious seasonal characteristics. The top three highest incidence rates were reported in Pingxiang City (7.12/105), Ganzhou City (3.12/105) and Fuzhou City (2.87/105). The lowest and highest incidence rates of acute hepatitis B were seen among residents aged under 10 years (0.30/105) and 20-29 years (3.86/105). The incidence rate of males was higher than that of females (3.25/105 vs. 1.55/105, P<0.05). Farmers were predominant population affected acute hepatitis B (5 764 cases, 64.84%). @*Conclusions@#The incidence of acute hepatitis B showed a downward trend in Jiangxi Province from 2014 to 2021, and the disease predominantly affected young males, farmers. Health education should be strengthened, and hepatitis B vaccination coverage should be promoted.