Uso inconsistente del preservativo masculino en hombres VIH negativos que tienen sexo con hombres / Inconsistent use of male condoms among HIV-negative men who have sex with other men / Uso inconsistente do preservativo masculino entre homens HIV negativos que fazem sexo com homens

Objetivo: analizar los factores asociados con el uso inconsistente del preservativo masculino en hombres VIH negativos que tienen sexo con hombres. Método: estudio transversal, analítico, nacional realizado de forma online en todas las regiones de Brasil, en 2020, a través de redes sociales y sitios de citas. El uso inconsistente del preservativo se definió como el uso ocasional o no usarlo nunca. Se realizaron análisis estadísticos descriptivos, pruebas de asociación y regresión logística binaria. Resultados: 1222 (85%) de los 1438 participantes informaron uso inconsistente del preservativo. Las variables "homosexuales" (ORA: 2,03; IC 95%: 1,14-3,59; p = 0,016), "tener pareja estable" (ORA: 2,19; IC 95%: 1,55-3,09; p<0,001), "sexo oral" (ORA: 2,41; IC 95%: 1,31-4,43; p = 0,005), "anal insertivo" (ORA: 1,98; IC 95%: 1,10-3,58; p = 0,023) y "diagnóstico de ITS" (ORA: 1,59; IC 95%: 1,13-2,24; p = 0,007) se asociaron de forma independiente con el uso inconsistente del preservativo masculino. Las variables "recibió consejo de un amigo sobre la prueba del VIH" (ORA: 0,71; IC 95%: 0,52-0,96; p = 0,028) y "trabajador sexual" (ORA: 0,26; IC 95%: 0,11-0,60; p = 0,002) fueron factores protectores. Conclusión: las variables estudiadas indicaron que hay una fuerte relación entre las parejas estables y el aumento de la confianza y la baja adherencia al uso del preservativo, lo que coincide con otros estudios.

Objective: to analyze the factors associated with inconsistent use of male condoms among HIV-negative men who have sex with other men. Method: a cross-sectional, analytical and nationwide study conducted online in all the Brazilian regions in 2020, via networks and in dating websites. Inconsistent condom use was defined as occasional use or as never using it. Descriptive statistical analyses were performed, as well as association and binary logistic regression tests. Results: inconsistent condom use was reported by 1,222 (85%) of all 1,438 participants. The "homosexuals" (ORAdj: 2.03; 95% CI: 1.14-3.59; p=0.016), "having a fixed partner" (ORAdj: 2.19; 95% CI: 1.55-3.09; p<0.001), "oral sex" (ORAdj: 2.41; 95% CI: 1.31-4.43; p=0.005), "insertive anal" (ORAdj: 1.98; 95% CI: 1.10-3.58; p=0.023) and "STI diagnosis" (ORAdj: 1.59; 95% CI: 1.13-2.24; p=0.007) variables were independently associated with inconsistent use of male condoms. The "receiving advice on HIV test from a friend" (ORAdj: 0.71; 95% CI: 0.52-0.96; p=0.028) and "sex worker" (ORAdj: 0.26; 95% CI: 0.11-0.60; p=0.002) variables were protective factors. Conclusion: the variables under study pointed to a strong relationship between steady partners and increased trust and low adherence to condom use, corroborating other studies.

Objetivo: analisar os fatores associados ao uso inconsistente do preservativo masculino entre homens HIV negativos que fazem sexo com homens. Método: estudo transversal, analítico, de abrangência nacional realizado on-line em todas as regiões do Brasil, em 2020, por meio de redes sociais e em sites de relacionamento. O uso inconsistente do preservativo foi definido como uso ocasional ou nunca ter usado. Foram realizadas análises estatísticas descritivas, testes de associação e regressão logística binária. Resultados: o uso inconsistente do preservativo foi relatado por 1222 (85%) dos 1438 participantes. As variáveis "homossexuais" (ORA: 2,03; IC 95%: 1,14- 3,59; p = 0,016), "ter parceiro fixo" (ORA: 2,19; IC 95%: 1,55-3,09; p<0,001), "sexo oral" (ORA: 2,41; IC 95%: 1,31-4,43; p = 0,005), "anal insertivo" (ORA: 1,98; IC 95%: 1,10-3,58; p = 0,023) e "diagnóstico de IST" (ORA: 1,59; IC 95%: 1,13-2,24; p = 0,007) foram independentemente associadas ao uso inconsistente do preservativo masculino. As variáveis "recebeu aconselhamento de amigo sobre teste de HIV" (ORA: 0,71; IC 95%: 0,52-0,96; p = 0,028) e "profissional do sexo" (ORA: 0,26; IC 95%: 0,11-0,60; p = 0,002) foram fatores de proteção. Conclusão: as variáveis estudadas apontaram uma forte relação das parcerias fixas com o aumento da confiança e uma baixa adesão ao uso do preservativo, o que corrobora com outros estudos.

Medidas poblacionales para la seguridad vial: más allá de la responsabilidad individual

Las lesiones causadas por el tránsito (LCT) se encuentran dentro de las principales causas de mortalidad y discapacidad a nivel mundial, hecho reflejado en el puesto que ocupan dentro de las primeras diez causas de vida ajustados por discapacidad, con importantes costos e impacto económico y social para las sociedades que las padecen. En 2004, la Organización Mundial de la Salud (OMS) lanzó el primer informe sobre prevención de LCT. Sin embargo, en años posteriores esa situación no mejoró, por lo cual las Naciones Unidas lanzó la Década de Acción para la Seguridad Vial (2011-2020), donde se invitaba a los gobiernos a diseñar e implementar acciones para reducir la carga asociada a este problema; entre estas se encuentra diseño y mejoramiento de vías, atención oportuna pos siniestro, control de la velocidad, medidas de control administrativo, diseño y mejoramiento de estándares vehiculares, entre otras. Las medidas basadas en enfoque poblacional han demostrado ser más poderosas que las medidas que inducen cambios de comportamiento individual.

Injuries caused by traffic (ICT) are among the main causes of mortality and disability worldwide, reflected in the fact that they occupy the first ten causes of disability adjusted life years with economic and social cost impacts for the societies that suffer from them. In 2004, the World Health Organization (WHO) released the first Prevention Report about ICT. Nevertheless, in subsequent years this situation has not improved, motivating the United Nations to launch the Decade of Action for Road Safety (2011-2020), where governments were invited to design and implement actions to reduce the burden associated with this problem: designing and improving of roads, increasing timely post-crash care, speed control, administrative control measures, designing and improving vehicle safety standards, among others. Population-based measures have been shown to be more powerful than measures that induce individual behavior changes.

Valoración de algunos indicadores del programa de atención a la conducta suicida en adolescentes / Evaluation of Some Indicators of the Program of Attention to Suicidal Behavior in Adolescents

Introducción: El suicidio está entre las tres primeras causas de muerte en el grupo de adolescentes y adultos jóvenes, su incidencia no ha descendido en el presente siglo. Objetivo: Valorar algunos indicadores relevantes del programa de atención a la conducta suicida en adolescentes. Métodos: Investigación en sistema y servicios de salud con diseño de estudio observacional descriptivo en tres áreas de salud del municipio Cienfuegos: áreas V, VII y VIII, de enero a septiembre del 2019. El universo fue de 46 profesionales de los Equipos de Salud Mental y Equipo Básicos de Salud. Se utilizaron como instrumentos dos encuestas, diseñadas y validadas por criterio de experto. Fueron seleccionados 6 indicadores en las dimensiones estructura y proceso y 4 en resultado. Se utilizó una media ponderada para procesar los datos. Resultados: Los indicadores valorados de regular fueron: en la estructura: capacitación de los recursos humanos y capacidad técnica del personal; en el proceso: confección de las historias clínicas, diseminación del programa en las unidades de salud y su verificación y las modalidades terapéuticas; y en resultado: la participación del equipo de salud mental en las investigaciones relacionadas con la conducta suicida. Conclusiones: Existe un grupo de deficiencias que conlleva a que el cumplimiento del programa de atención a la conducta suicida en adolescentes sea valorado como regular, en las tres áreas de salud del municipio Cienfuegos estudiadas(AU)

Introduction: Suicide is among the first three causes of death in the group of adolescents and young adults; its incidence has not decreased in the present century. Objective: To assess some relevant indicators of the adolescent suicidal behavior care program. Methods: Research in health system and services with descriptive observational study design in health areas V, VII and VIII of Cienfuegos municipality from January to September 2019. The universe was 46 professionals of the Mental Health Teams and Basic Health Team. Two surveys were used as instruments, designed and validated by expert criteria. Six indicators were selected in the structure and process dimensions and four in outcome. A weighted average was used to process the data. Results: The indicators rated as fair were: in the structure: training of human resources and technical aptitude of personnel; in the process: preparation of clinical histories, dissemination of the program in health units and its verification and therapeutic modalities; and in the outcome: participation of the mental health team in research related to suicidal behavior. Conclusions: There is a group of deficiencies that leads to the fact that compliance with the program of attention to suicidal behavior in adolescents is valued as regular in the three health areas of the Cienfuegos municipality studied(AU)

Breast and gynecologic cancers as a Brazilian health priority

SUMMARY OBJECTIVE: Cancer imposes a profound burden on low- and middle-income countries where 65% of the global cancer deaths occurred in 2020. The objective of the present review was to describe female cancer epidemiology in Brazil, barriers to prevention, screening, and treatment, and to propose strategies to a better control. METHODS: For the process of literature search and scientific acquisition, we have utilized the terms "female cancer" AND "breast cancer," AND "cervical cancer" AND "endometrial cancer" AND "ovarian cancer" AND "Brazil" in PubMed. References of the articles included in this review were manually searched in order to identify relevant studies on the topic. The official Brazilian epidemiology data were extensively analyzed at the governmental site www.inca.gov.br. RESULTS: Considering cases of breast and gynecologic cancers together, 105,770 new cases are expected to be diagnosed yearly, positioning female cancer as the highest cancer incidence in Brazil. Female breast cancer is the most common and the leading cause of death from cancer in the female population in all regions of Brazil, except in the North, where cervical cancer ranks first. Cervical cancer, a preventable disease, corresponds to the third-most common neoplasia in women, with higher incidences in the North and Northeast regions of Brazil. An upward trend has been observed in endometrial cancer incidence, a tendency that follows the increase of its two most common risk factors: population aging and obesity. Ovarian cancer currently occupies the eighth position among female cancers in Brazil, but it is the most lethal gynecologic cancer. The main strategies to reduce female cancer mortality rates are the reduction of inequalities in healthcare services and the early diagnosis of cases. The lack of a specific national cancer program results in a reactive and unplanned approach to healthcare provision, ultimately leading to suboptimal resource utilization and higher expenditure. CONCLUSION: Analyzed together, breast and gynecologic cancers correspond to the leading cause of cancer in Brazil. A heterogeneous group, female cancer includes diseases with a high primary and secondary prevention potential. The organization of a female cancer program in Brazil prioritizing primary and secondary prevention strategies, such as adequate mammography screening and human papillomavirus vaccination coverage, could significantly improve female cancer control in the country.

Barriers to Pre-Exposure Prophylaxis (PrEP) use for HIV: an integrative review / Barreras para el uso de la Profilaxis Previa a la Exposición (PrEP) para el VIH: una revisión integradora / Barreiras para o uso da Profilaxia Pré-Exposição (PrEP) ao HIV: uma revisão integrativa

ABSTRACT Objectives: to identify and synthesize scientific evidence on the barriers and difficulties for Pre-exposure Prophylaxis (PrEP) use and compliance for HIV. Methods: an integrative literature review, using the MEDLINE/PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Academic Search Premier and Scopus (Elsevier) databases. Results: all (100%) the articles included identified that PrEP users experience some type of structural barrier related to health services such as long distance from the units, suboptimal logistics for taking pills and professional resistance to prescribing PrEP. Furthermore, 63.21% identified social barriers, such as stigma about sexuality and HIV, in addition to individual barriers such as alcohol use, adverse effects, and concerns about long-term toxicity. Conclusions: the barriers to PrEP use are multifactorial. Effective interventions are needed to support PrEP users in accessing, complying with, and retaining health services.

RESUMEN Objetivos: identificar y sintetizar evidencias científicas sobre las barreras y dificultades para el uso y la adherencia a la Profilaxis Pre-Exposición (PrEP) para el VIH. Métodos: revisión integrativa de la literatura, utilizando las bases de datos MEDLINE/PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Academic Search Premier y Scopus (Elsevier). Resultados: todos (100%) de los artículos incluidos identificaron que los usuarios de PrEP experimentan algún tipo de barrera estructural relacionada con los servicios de salud, como la larga distancia de las unidades, la logística subóptima para la toma de pastillas y la resistencia profesional a prescribir la PrEP. Además, el 63,21% identificó barreras sociales, como el estigma sobre la sexualidad y el VIH, además de las barreras individuales como el consumo de alcohol, los efectos adversos y las preocupaciones sobre la toxicidad a largo plazo. Conclusiones: las barreras para el uso de la PrEP son multifactoriales. Se necesitan intervenciones eficaces para ayudar a los usuarios de la PrEP a acceder, adherirse y conservar los servicios de salud.

RESUMO Objetivos: identificar e sintetizar as evidências científicas sobre as barreiras e dificuldades para o uso e adesão da Profilaxia Pré-exposição (PrEP) para o HIV. Métodos: revisão integrativa da literatura, utilizando as bases de dados MEDLINE/PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Academic Search Premier e Scopus (Elsevier). Resultados: todos (100%) os artigos incluídos identificaram que os usuários da PrEP experimentam algum tipo de barreira estrutural relacionada aos serviços de saúde, como longa distância das unidades, logística subótima para retirada de pílulas e resistência profissional para prescrição da PrEP. Ademais, 63,21% identificaram barreiras sociais, como estigma sobre a sexualidade e HIV, além de barreiras individuais, como uso de álcool, efeitos adversos e preocupações com a toxicidade a longo prazo. Conclusões: multifatoriais são as barreiras para o uso da PrEP. Intervenções efetivas são necessárias para apoiar os usuários da PrEP no acesso, adesão e retenção nos serviços de saúde.

Electrocardiogram as Part of the Evaluation of Children and Adolescents Before Starting Physical Exercise

Abstract Background: Children and adolescents should be encouraged to participate in sports; however, physicians should screen for cardiac abnormalities that can lead to sudden death. The European Society of Cardiology, the Brazilian Society of Cardiology and the Brazilian Society of Sports Medicine indicate performing an electrocardiogram (ECG) in evaluating athletes, while the American Heart Association indicates complementary exams only when there is a personal or family history of cardiovascular diseases or changes in clinical examination. Objectives: To evaluate the need for an ECG in evaluating children and adolescents before starting physical activities. Methods: We recruited 983 children and adolescents who practiced physical activities for anthropometric assessment, clinical examination and conventional ECG at rest. Variables were analysed using the Goodman test with a significance level of 5%. Results: Participants had a higher incidence of overweight, obesity and severe obesity compared to standard World Health Organization (WHO) values. The most common finding in clinical examination was heart murmur (18.5% of participants). Electrocardiographic changes were found in 3.3% of participants, including paroxysmal supraventricular tachycardia and pre-excitation syndrome, which may be responsible for sudden death, even in asymptomatic individuals with no personal or family history of heart disease and no abnormality on clinical examination. Conclusions: ECG revealed arrhythmias that were not detected by clinical examination and may precede sudden death in individuals subjected to physical exertion, indicating its role in the assessment of children and adolescents before starting regular physical exercise.

The Challenges of Implementing a Text Message Intervention to Promote Behavioral Change in Primary Care Patients With Hypertension and Diabetes

Abstract Background Controlling blood pressure and glycemic levels is a challenge that requires innovative solutions. Objective To assess the feasibility of implementing a text message intervention among low-income primary care patients, as well as to assess self-reported behavioral change. Methods A set of 200 text messages was developed on healthy eating, physical activity, adherence, and motivation. Participants from Vale do Mucuri, MG, Brazil diagnosed with diabetes or hypertension or undergoing screening for those diseases, received 5 to 8 messages per week for 6 months. They answered a questionnaire to report their satisfaction and behavioral changes. Results Of the 136 patients, 117 (86.0%) answered the questionnaire. Most reported that the messages were very useful (86.3%), easy to understand (90.6%), and were very helpful for behavioral change (65.0%); 84.6% reported that they had started eating healthier. The most frequent reported lifestyle changes were: improved diet quality (85.5%), reduced portions (65.8%), and weight loss (56.4%). The majority of patients shared the messages (60.7%) with family or other acquaintances, considered the number of messages to be adequate (89.7%) and would recommend the program to others (95.7%). Conclusion An intervention based on text messages to promote behavioral change in patients with hypertension or diabetes in primary care is feasible in low-resource settings. Future studies are needed to assess the program's long-term effects on clinical outcomes.

Diet Quality and Associated Factors in Atherosclerotic Cardiovascular Disease Patients with and without Diabetes at a Specialized Outpatient Clinic in the City of Pelotas, Brazil

Abstract Background In most cases, atherosclerotic cardiovascular disease (ACVD) is preventable through primary prevention and control of traditional risk factors, such as smoking cessation, regular physical activity, and adherence to healthy dietary patterns. The assessment of diet quality of ACVD patients would be important for a dietary intervention. Objectives This study aimed to evaluate diet quality of ACVD patients and its association with clinical conditions. Methods This cross-sectional study was nested within a randomized clinical trial entitled "Programa Alimentar Cardioprotetor Brasileiro." Baseline data of 80 patients from Pelotas, Brazil, were obtained. Food consumption was assessed using 24-h food recall and the Revised Diet Quality Index (IQD-R). Data on smoking status and comorbidities were reported by the patients during medical history taking. To analyze the associations between IQD-R and clinical variables, unpaired Student's t-test or the analysis of variance was performed. The significance level was 5%. Results Most of the sample consisted of men (66.5%), elderly individuals (52.50%), patients with hypertension (78.75%), dyslipidemia (58.75%), and overweight (73.75%). The average IQD-R score was 56.7 ± 12.6 points. Better quality of diet was observed for patients with diabetes compared to those without diabetes (61.1 ± 11.8 versus 54.0 ± 12.6 points; p=0.014). Conclusion There is a need to improve diet quality of ACVD patients. Patients ACVD and diabetes had better diet quality compared to those without diabetes.

Investigation report on an outbreak of cutaneous anthrax in Caoxian County, Heze City, Shandong Province in 2021 / 中华地方病学杂志

Objective:To analyze the cause and epidemiological characteristics of an outbreak of cutaneous anthrax in Caoxian County, Heze City, Shandong Province, and to provide scientific basis for anthrax prevention and control.Methods:Using on-site epidemiological investigation methods and the "Anthrax Epidemiological Case Investigation Form", case investigations were conducted based on the epidemiological contact history and close contacts of suspected anthrax cases reported by the national health care system ( n = 83). Scorched skin smears, diseased cattle tissues, soil samples from the slaughter site and smears from slaughter utensils were collected from cases for Real-time PCR testing and pathogenic bacteria isolation and culture, respectively. Anthrax determination criteria were carried out with reference to "Anthrax Diagnosis" (WS 283-2020). Results:A total of 13 cases of cutaneous anthrax were found in this outbreak, including 12 clinically diagnosed cases and one confirmed case (positive Real-time PCR test and isolation of a strain of Bacillus anthracis). The epidemiological investigation determined that the source of infection in this outbreak was diseased cattle, the transmission route was through slaughter of diseased cattle, contact with contaminated utensils and related cattle products, and the patients were mainly engaged in occupations related to cattle slaughter or cattle product collection and sale. A total of 84 samples were collected, including 13 skin scabs, 64 environmental samples and 7 beef samples. Thirty-six positive PCR tests were performed, with a positive rate of 42.86% (36/84). Among them, 100.00% (13/13) were positive for skin scab smear specimens, 29.69% (19/64) for environmental samples and 4/7 for beef samples. A total of 8 strains of Bacillus anthracis were isolated, including 6 environmental specimens, 1 suspected case and 1 beef strain, with an overall detection rate of 9.52% (8/84). Eighty-three close contacts were investigated. Thirteen households involved in the epidemic were disinfected by spraying (200 ml/m 2) with chlorine-containing disinfectant (5 000 mg/L), and a total of 40 households involved in the epidemic were disinfected, covering an area of about 10 765 m 2. Forty-five pieces of suspected contaminated clothing were burned and disposed of, and 152 pieces of kitchenware were soaked. Conclusions:Slaughter of infected cattle, contact with contaminated utensils and related cattle products are the main causes of this skin anthrax outbreak. Strengthening market supervision, deepening inter-animal epidemic prevention, carrying out publicity and education on anthrax prevention and control, and enhancing practitioners' awareness of disease prevention is the key to prevent anthrax from occurring.

Epidemiological characteristics and trends of global COVID-19 / 中华地方病学杂志

Objective:To analyze the global epidemic data of Corona virus disease 2019 (COVID-19) and the prevention and control measures, learn about the epidemic characteristics, development trend and the main factors affecting the prevention and control effect, and provide reference for scientific prevention and control of COVID-19.Methods:The data of COVID-19 mainly came from the WHO website and the websites of the United States, European and other Centers for Disease Control and Prevention (the statistical time was from the beginning of the epidemic in each country to March 31, 2022). The epidemiological characteristics and trends in the world and major countries were analyzed, and the main factors affecting the prevention and control of the epidemic were studied. SPSS19.0 software was used to collate data and statistical analysis.Results:The worldwide cumulative confirmed cases of COVID-19 reached 1 million on April 2, 2020, 10 million cases on June 28, 2020, 100 million cases on January 25, 2021, 200 million cases on August 3, 2021, 300 million cases on January 6, 2022, 400 million cases on February 8, 2022, 489 million cases on March 31, 2022. From January 2020 to March 31, 2022, the interval between each additional 100 million cases was gradually shortened (about 360 days from the beginning of the epidemic to the increase to 100 million, the average time to increase from 100 million to 200 million, from 200 million to 300 million was 170 days, and the number of confirmed cases increased from 300 million to 400 million was only 33 days), the epidemic had accelerated. The worldwide cumulative number of death case was 100 000 on April 9, 2020, 1 million on September 19, 2020, 5 million on October 31, 2021, and 6.14 million on March 31, 2022. From January to October 2021, the average time interval for an increase of 1 million deaths was 97 days. After October, the growth rate decreased, averaging 121 days. At the end of 2021, affected by the Omicron mutation, the number of infected people worldwide increased sharply. By March 31, 2022, the cumulative number of confirmed cases in all continents was Europe (181 million), Asia (141 million), North America (94.67 million), South America (56.09 million), Africa (11.55 million) and Oceania (5.58 million) from high to low. The cumulative deaths from high to low was Europe (1.77 million), North America (1.42 million), Asia (1.41 million), South America (1.28 million), Africa (0.25 million) and Oceania (8 900). The top 5 countries with cumulative confirmed cases of COVID-19 were the United States (80.14 million), India (43.03 million), Brazil (29.98 million), France (25.82 million) and the United Kingdom (21.28 million). The top five countries with accumulated deaths were the United States (980 000), Brazil (660 000), India (520 000), the United Kingdom (160 000) and France (140 000).Conclusions:COVID-19 is a global public health emergency. The epidemic has spread worldwide with strong infectivity, rapid transmission and great harm. It is suggested to focus on the prevention and control of key links, strengthen the early warning mechanism, continue to take scientific public health prevention and control measures such as vaccination, reduce severe case and death and deal with an ongoing challenge.

Current main problems and countermeasures for prevention and control of endemic diseases in China / 中华地方病学杂志

Over the past decade, remarkable progress has been made in prevention and control of endemic diseases in China through implementation of the 12th and the 13th Five-Year National Plans for Prevention and Control of Endemic Diseases and the Three-Year Action Plan for Special Prevention and Control of Endemic Diseases. Based on the latest monitoring data of endemic diseases and the evaluation results of the control and elimination of endemic diseases of the 13th Five-Year Plan, this paper analyzed current main problems in prevention and control of endemic diseases in China, focusing on implementation of prevention and control measures for iodine deficiency disorders, endemic fluorosis, and endemic arsenicosis, as well as the treatment and management of patients. Accordingly, corresponding countermeasures and suggestions are put forward from three aspects, including prevention and control mechanism, implementation of prevention and control measures, and scientific research, so as to provide scientific basis for the country and various regions to consolidate the achievements of prevention and control of endemic diseases and accurately implement the prevention and control measures of endemic diseases.

Interpretation of the International Myopia Institute's White Papers on Myopia Prevention and Control Ⅲ / 中华实验眼科杂志

The high prevalence of myopia is a global public health concern, and the risk of associated complications is becoming increasingly apprent.The International Myopia Institute (IMI) was established in 2015 to promote scientific research and clinical practice in myopia control, and IMI published the White Paper on Myopia Prevention and Control on the diagnosis, treatment, and management of myopia.In 2023, the IMI released the series three of the White Paper on Myopia Prevention and Control, which delves deeper into key issues in myopia research and management.The white paper focuses on non-pathological changes observed in axial myopia, and the role of the choroid in eye growth and myopia management.It also reviews the evidence for myopia incidence, progression and management in atypical populations, such as infants, pre-school children, and young adults.It provides recommendations and strategies for clinical practice in myopia management and summarizes important new findings in myopia research since 2019, which are summarized into the IMI 2023 Digest.This article aims to interpret the key contents of the series three of the White Paper on Myopia Prevention and Control, to help professionals involved in myopia control to stay informed about the latest evidence from international research, to optimize strategies for preventing and treating myopia-related diseases, and ultimately to promote the development of myopia research and management in China.

Meta-analysis of repeated low-level red light therapy for retarding myopia progression in children / 中华实验眼科杂志

Objective:To systematically evaluate the effect of repeated low-level red light (RLRL) therapy on controlling the progression of myopia in children.Methods:Medline, Embase, Cochrane Library, Web of Science, ClinicalTrial.gov and the CNKI, VIP, Wanfang database, and Chinese Clinical Trial Registry (www.chictr.org.cn) were searched from their establishment to September 2022 to obtain the randomized controlled trial (RCT) about RLRL controlling myopia progression in children.Grey literature was also searched.Inclusion and exclusion criteria were developed according to the PICOS principle.Two researchers screened the literature independently, extracted data, and assessed the risk of bias in the included studies using the Cochrane collaboration tool for assessing risk of bias.The data were imported into RevMan 5.4 software for meta-analysis.Mean and standard deviation of data were used to obtain mean differences and 95% confidence intervals of included studies.Changes in spherical equivalent (SE) and axial length (AL) were compared between before and after the intervention in RLRL and single-vision spectacle (experimental group) and single-vision spectacle (control group). The GRADE system was used to grade the quality of evidence for the outcome indicators.Results:A total of 157 studies were obtained.After the screening, 7 RCT studies including 1 038 study subjects met the inclusion criteria.Meta-analysis results showed that retarded SE progression was retarded and AL elongation was reduced significantly after different follow-up durations (1, 3, 6, 12 and 24 months) in experimental group compared with control group.As the follow-up duration extended from 1 month to 24 months, the retard of SE progression increased from 0.14 to 0.93 D, and the reduction of AL increased from 0.07 to 0.48 mm.Both 635 and 650 nm red light significantly retarded SE progression and reduced AL elongation.The two outcome indicators, SE change and AL change were moderate-strength evidence by GRADE.Conclusions:The current moderate-strength evidence shows that RLRL can better retard myopia progression in children than single-vision spectacle glasses.