Análise de perfil de saúde dos trabalhadores de um hospital do sul do Brasil / Health profile analysis of hospital workers in southern Brazil / Análisis del perfil de salud de los trabajadores de un hospital del sur de Brasil

A análise do perfil de saúde dos profissionais de saúde é necessária em ambientes hospitalares devido ao nível de insalubridade apresentado nesses locais. Assim, o objetivo deste estudo foi investigar o perfil de saúde, nível de atividade física e exposição a telas de trabalhadores de um hospital no Sul do Brasil. Este estudo tem caráter transversal e descritivo, e a amostra utilizada foi composta por trabalhadores adultos de um hospital universitário do Sul do Brasil. Os resultados indicaram que a maioria eram mulheres, brancas, de 35-44 anos, com especialização, renda de três a seis salários mínimos, percepção de bem-estar "boa" a "regular", índice de massa corporal "eutrófico" a "sobrepeso", sem doenças crônicas, não fumantes, com sono irregular, ansiedade em níveis normais, saúde percebida como "boa", sedentários, com mais de seis horas de tempo sentado em dias de trabalho. Foram encontradas associações entre ansiedade e várias variáveis. Embora com aspectos positivos, destaca-se que os trabalhadores apresentaram fatores de riscos à saúde, como sedentarismo, tempo prolongado sentado e dor corporal leve e sono irregular. Intervenções em saúde como diminuição de sedentarismo promovendo a prática de atividade física, redução de tempo sentado e orientações para manejo do sono e alívio de dores são necessárias nesse ambiente.

Analyzing the health profile of healthcare professionals is necessary in hospital environments due to their level of unhealthy conditions. Thus, this study investigated the health profile, level of physical activity, and screen exposure of workers at a hospital in southern Brazil. A cross-sectional descriptive was conducted with adult workers from a university hospital in southern Brazil. Results indicated that most participants were white women aged 35 to 44 years with specialization, an income of three to six minimum wages, well-being perceived as "good" to "regular", "eutrophic" to "overweight" body mass index, without chronic diseases, non-smokers, with irregular sleep, anxiety at normal levels, health perceived as "good," sedentary, sitting for more than six hours on work days. Associations were found between anxiety and several variables. Despite positive aspects, workers presented health risk factors such as a sedentary lifestyle, prolonged sitting, mild body pain, and irregular sleep. Health interventions to reduce sedentary lifestyles by promoting physical activity, to reduce sitting time, and to guide sleep management and pain relief are necessary in this setting.

El análisis del perfil de salud de los profesionales de la salud es importante en el ámbito hospitalario debido al nivel de condiciones de insalubridad en estos lugares. Así, el objetivo de este estudio fue evaluar el perfil de salud, el nivel de actividad física y la exposición a pantallas por parte de los trabajadores de un hospital del Sur de Brasil. Este es un estudio transversal y descriptivo, y la muestra estuvo compuesta por trabajadores adultos de un hospital universitario del Sur de Brasil. Los resultados indicaron que la mayoría eran mujeres, blancas, de entre 35 y 44 años, con especialización, ingresos de tres a seis salarios mínimos, percepción de bienestar "bueno" a "regular", índice de masa corporal "eutrófico", "sobrepeso", sin enfermedades crónicas, no fumadores, con sueño irregular, ansiedad en niveles normales, salud percibida como "buena", sedentarios, con más de seis horas sentados en días laborales. Se encontraron asociaciones entre la ansiedad y varias variables. Aunque existen aspectos positivos, se destaca que los trabajadores presentaron factores de riesgo para la salud, como sedentarismo, estar sentado durante mucho tiempo, dolores corporales leves y sueño irregular. En este entorno son necesarias intervenciones sanitarias, como la reducción del estilo de vida sedentario mediante la promoción de la actividad física, la reducción del tiempo sentado y la orientación sobre el manejo del sueño y el alivio del dolor.

Home round: a strategy for improving community health

In community health practice, home rounds are essential. In Nigeria, a home round is a regular visit to outpatients/clients in their homes by a team of community health specialists to make decisions concerning patient/client’s care, review, and follow-up on the progress of their health condition. The team visits within the treatment period to make sure the patient is adhering to prescriptions, address any barriers to care, and make referrals if necessary. Home rounds start with examining patient records, putting together a team, assessing patients in their homes, and recording the findings and actions. A competent community health practitioner (CHP) should be compassionate, informed, and skillful at conducting house rounds, identifying family health problems, and taking the necessary action. In primary health care, home rounds can detect less common but serious individual and family conditions; and enhance community health. However, challenges like shortage of manpower, insecurity, lack of logistics, and unskillful health workers have made home rounds impossible in some primary healthcare facilities. To facilitate home rounds, it is recommended that governmental and nongovernmental organizations train community health practitioners in home rounding, provide logistics at primary healthcare facilities, and staff each health center with a sufficient number of community health practitioners by primary healthcare standards. Community health practitioners should be adaptable, sensitive, and skilled, and families and communities should work together to provide security.

Condições de trabalho e saúde de profissionais da linha de frente na pandemia de covid-19 / Working conditions and health of frontline professionals in the COVID-19 pandemic

RESUMO Objetivou-se investigar as condições de trabalho e a saúde física e mental de profissionais de saúde atuantes na linha de frente da covid-19 em serviços de urgência, emergência e terapia intensiva no Brasil, no segundo ano da pandemia. Estudo transversal, com uso de questionário eletrônico, por meio do qual coletaram-se dados sobre condições de trabalho, saúde física e mental, além do instrumento Depression, Anxiety and Stress Scale (DASS-21). A amostra (n=209) incluiu enfermeiros (28,7%), técnicos de enfermagem (30,1%), fisioterapeutas (33%) e médicos (8,2%). Os profissionais possuíam idade média de 34,6 anos e relataram uma carga horária média de 53,5 horas/semana. Verificou-se aumento das horas trabalhadas (62%) e da quantidade de pacientes (84%). A maioria relatou bom relacionamento com o chefe (89%) e satisfação com o trabalho (87%). A prevalência de sintomas de estresse, ansiedade e depressão foi superior a 45%, com predomínio de sintomas graves ou extremamente graves. A prevalência de dor musculoesquelética e fadiga foi de 84,7% e 83,3%, respectivamente. Os profissionais de saúde apresentaram aumento de volume de trabalho e de exigência durante a pandemia de covid-19. Observou-se, ainda, intenso prejuízo à saúde física e mental desses trabalhadores.

ABSTRACT The objective was to investigate the working conditions and physical and mental health of health professionals working on the front lines of COVID-19 in urgent, emergency, and intensive care services in Brazil, in the second year of the pandemic. Cross-sectional study, using an electronic questionnaire, through which data on working conditions, and physical and mental health were collected, in addition to the Depression, Anxiety and Stress Scale (DASS-21) instrument. The sample (n=209) included nurses (28.7%), nursing technicians (30.1%), physiotherapists (33%), and physicians (8.2%). The professionals had an average age of 34.6 years and reported an average workload of 53.5 hours/week. There was an increase in hours worked (62%) and in the number of patients (84%). Most reported a good relationship with their boss (89%) and job satisfaction (87%). The prevalence of symptoms of stress, anxiety, and depression was greater than 45%, with a predominance of severe or extremely severe symptoms. The prevalence of musculoskeletal pain and fatigue was 84.7% and 83.3%, respectively. Health professionals showed an increase in workload and demand during the COVID-19 pandemic. There was also intense damage to the physical and mental health of these workers.

Qualidade de vida no trabalho dos enfermeiros da atenção primária à saúde / Quality of life at work of nurses in primary health care / Calidad de vida en el trabajo del enfermero en atención primaria de salud

Objetivo: Analisar a qualidade de vida no trabalho dos enfermeiros assistenciais da Atenção Primária à Saúde de um município baiano. Métodos: Pesquisa observacional, descritiva, transversal e de abordagem quantitativa. Aplicou-se o questionário Total Quality of Work Life (Qualidade de Vida no Trabalho Total), por meio de ligação telefônica. Os dados foram transcritos para o software Microsoft Excel® e analisados por estatística descritiva. Resultados: Os 34 enfermeiros que aceitaram participar compuseram amostra de maioria feminina (97,1%), com idade maior ou igual a 40 anos (67,5%) e estado conjugal casado(a)/união estável (58,8%). Quanto à escolaridade, prevaleceu o nível de pós-graduação lato sensu (85,3%), com maior parcela atuando no município há mais de 4 anos (67,7%), por meio de vínculo efetivo (70,6%). No tocante à avaliação da qualidade de vida no trabalho, a esfera que obteve pior avaliação foi a "Econômica política" e a melhor avaliada foi a "Psicológica e comportamental". Além disso, a avaliação geral apontou classificação "insatisfatória". Conclusão: A melhoria da qualidade de vida no trabalho dos enfermeiros pode trazer repercussões que vão além da satisfação do profissional, pois fatores motivacionais, de satisfação, físicos e psicológicos influenciam diretamente sua produtividade no trabalho e a qualidade do serviço prestado. (AU)

Objective: To analyze the quality of life at work of nurses working in Primary Health Care in a city in Bahia. Methods: Observational, descriptive, cross-sectional research and with a quantitative approach. The Total Quality of Work Life questionnaire was applied through telephone call. The search results were transferred to the Microsoft Excel® software and analyzed using descriptive statistics. Results: 34 nurses who agreed to participate comprised a sample of mostly female (97,1%), aged 40 years or older (67,5%) and marital status married or stable union (58,8%). About education, the majority had a lato sensu postgraduate degree (85,3%), with a greater portion working in the city for more than 4 years (67,7%), having an effective contract (70,6%). Regarding the evaluation of quality of life at work, the sphere that obtained the worst assessment was "Economic policy" and the best assessed the "Psychological and behavioral" sphere. Furthermore, the general evaluation pointed to an "unsatisfactory" rating. Conclusion: It is believed that the improvement in the quality of life at work of the nurses can bring repercussions that go beyond professional satisfaction, due to motivation, satisfaction, physical and psychological factors directly influence their productivity at work and the quality of the service provided. (AU)

Objetivo: Analizar la calidad de vida en el trabajo de enfermeros que actúan en la Atención Primaria de Salud de un municipio de Bahía. Métodos: Esta es una investigación observacional, descriptiva, transversal y con enfoque cuantitativo. Durante la encuesta se aplicó el cuestionario Total Quality of Work Life a través de una llamada telefónica. Los datos se transcribieron al software Microsoft Excel® y se analizaron mediante estadística descriptiva. Resultados: Las 34 enfermeras que aceptaron participar eran, en su mayoría, del sexo femenino (97,1%), con edad igual o superior a 40 años (67,5%) y casado o en unión estable (58,8%). Acerca de la educación, predominó el nivel de posgrado lato sensu (85,3%), con una mayor parte de los encuestados trabajando en el municipio por más de 4 años (67,7%), a través de un contrato efectivo (70,6%). Sobre la evaluación la valoración de la calidad de vida en el trabajo, el ámbito que obtuvo la peor valoración fue "Política Económica" y el mejor valorado fue "Psicológico y conductual". Además, la evaluación general apuntó a una calificación "insatisfactoria". Conclusión: Se cree que la mejora en la calidad de vida en el trabajo de estos enfermeros puede traer repercusiones que van más allá de la satisfacción profesional, ya que factores motivacionales, de satisfacción, físicos y psicológicos influyen directamente en su productividad en el trabajo y en localidad del servicio prestado. (AU)

Avaliação do perfil dos profissionais da saúde contaminados pela covid-19 no Brasil / Assessment of the profile of health professionals contaminated by covid-19 in Brazil / Evaluación del perfil de profesionales de la salud contaminados por covid-19 en Brasil

Objetivo: Analisar o perfil dos profissionais da saúde de nível técnico e superior contaminados pela covid-19 no Brasil. Métodos: Estudo transversal, quantitativo, desenvolvido por meio dos dados da Pesquisa Nacional por Amostra de Domicílios (PNAD) COVID 2020, com 2.794 trabalhadores da saúde de nível técnico e superior. Foram consideradas as variáveis disponíveis no banco de dados da PNAD COVID, referentes aos meses de julho, agosto, setembro, outubro e novembro de 2020. Os dados da PNAD COVID foram transportados para um banco de dados criado no MS-Excel e analisados com estatísticas descritivas. Resultados: Os profissionais de nível técnico foram os que mais se contaminaram com a covid-19, principalmente nos estados de São Paulo, Rio de Janeiro e Maranhão; com as seguintes características: sexo feminino; da etnia parda; com domicílio já quitado, sendo este responsável pelo domicílio; não constituindo outro emprego; média de idade 40 anos; o principal sintoma evidenciado foi a dor de cabeça; e, mais de 80% não relataram apresentar comorbidades. Conclusão: O cenário atual pandêmico, para os profissionais da saúde, deixa em evidência os danos atuais e futuros, que podem afetar a saúde mental desses trabalhadores, tornando-se elucidado a necessidade de maiores estudos e olhares para esses trabalhadores. (AU)

Objective: To analyze the profile of technical and higher-level health professionals contaminated by covid-19 in Brazil. Methods: Cross-sectional, quantitative study, developed using data from the National Household Sample Survey (PNAD) COVID 2020, with 2,794 technical and higher-level health workers. The variables available in the PNAD COVID database for the months of July, August, September, October and November 2020 were considered. The PNAD COVID data were transported to a database created in MS-Excel and analyzed with statistics descriptive. Results: Professionals with a technical level were the ones who were most contaminated with covid-19, mainly in the states of São Paulo, Rio de Janeiro and Maranhão; with the following characteristics: female; of the mixed race; with the home already paid off, being responsible for the home; not constituting another job; mean age 40 years; the main symptom evidenced was headache; and more than 80% reported no comorbidities. Conclusion: The current pandemic scenario, for health professionals, highlights the current and future damage, which can affect the mental health of these workers, clarifying the need for further studies and perspectives on these workers. (AU)

Objetivo: Analizar el perfil de técnicos y profesionales de la salud de alto nivel contaminados por covid-19 en Brasil. Métodos: Estudio transversal, cuantitativo, desarrollado a partir de datos de la Encuesta Nacional por Muestra de Hogares (PNAD) COVID 2020, con 2.794 técnicos y trabajadores de la salud de nivel superior. Se consideraron las variables disponibles en la base de datos PNAD COVID para los meses de julio, agosto, septiembre, octubre y noviembre de 2020. Los datos de la PNAD COVID fueron transportados a una base de datos creada en MS-Excel y analizados con estadística descriptiva. Resultados: Los profesionales con nivel técnico fueron los más contaminados con covid-19, principalmente en los estados de São Paulo, Rio de Janeiro y Maranhão; con las siguientes características: femenino; del mestizo; con el hogar ya pagado, siendo responsable del hogar; no constituir otro trabajo; edad media 40 años; el síntoma principal evidenciado fue el dolor de cabeza; y más del 80% no informaron comorbilidades. Conclusión: El escenario pandémico actual, para los profesionales de la salud, resalta los daños actuales y futuros, que pueden afectar la salud mental de estos trabajadores, aclarando la necesidad de mayores estudios y perspectivas sobre estos trabajadores. (AU)

Respuesta inmunitaria al SARS-CoV-2 previa a la vacunación en personal de salud de Alto Paraná, Paraguay, un estudio seroepidemiológico / Immune response to SARS-CoV-2 prior to vaccination among healthcare workers from Alto Paraná, Paraguay, a seroepidemiological study

INTRODUCCIÓN: La comprensión del comportamiento de la respuesta humoral en COVID-19 continúa siendo un desafío para la producción de vacunas que proporcionen inmunidad más duradera. OBJETIVO: Describir la respuesta humoral natural inducida por SARS- CoV-2 en personal de salud con base en el perfil epidemiológico y clínico. MATERIALES Y MÉTODOS: Estudio transversal en personal de salud de hospitales públicos de referencia del Departamento de Alto Paraná, Paraguay. Se incluyeron 962 participantes, mediante muestreo no probabilístico de tipo consecutivo, aplicación de cuestionario y toma de muestras sanguíneas. Se buscaron anticuerpos por ensayo inmunocromatográfico para detección de IgM e IgG contra SARS- CoV-2 y por el método ELISA de captura de IgG específicos contra la proteína spike (SARS-CoV-2) y se evaluaron factores asociados a la seropositividad. RESULTADOS: La seroprevalencia global fue 36,5% (IC 95%: 33,4 - 39,5); 59,3% (n: 571) de los encuestados refirió haber tenido síntomas compatibles al COVID-19 entre el inicio de la pandemia y la fecha de toma de muestra, de estos 44% (n: 251) resultó seropositivo; 10,4% (n: 100) manifestó no haber tenido síntomas en el periodo estudiado, pero tuvo un resultado positivo. Los factores asociados a la seropositividad fueron: presencia de síntomas (p 90 días). CONCLUSIONES: Las características clínicas fueron mayormente asociadas con la seropositividad y la seropreva- lencia en los sintomáticos varió de acuerdo con el tiempo transcurrido desde el inicio de los síntomas y la serología.

BACKGROUND: Understanding the behavior of humoral response in COVID-19 continues to be a challenge to produce vaccines that provide long-lasting immunity. AIM: To describe the natural humoral response induced by SARS-CoV-2 among healthcare workers based on epidemiological and clinical profiles. METHODS: Cross-sectional study in healthcare workers from public hospitals in the Department of Alto Paraná, Paraguay, 962 participants were recruited through consecutive sampling, using a questionnaire and blood sampling. Antibodies were determined by immunochromatography assay for detection of IgM and IgG and by SARS-CoV-2 IgG anti-spike capture ELISA method and factors associated with seropositivity were evaluated. RESULTS: The overall seropositivity was 36.5% (95% CI: 33.4 - 39.5); 59.3% (n: 571) of respondents reported symptoms compatible with COVID-19 since the start of the pandemic and the date of blood draw, 44% (n: 251) of them tested positive; 10.4% (n: 100) who reported no history of symptoms tested positive. The factors associated with seropositivity were the presence of symptoms (p 90 days). CONCLUSIONS: Clinical characteristics were mostly associated with seropositivity and sero prevalence in symptomatic participants varied according to the time elapsed from the onset of symptoms to serology.

Survey and analysis on fertility status of female employees aged 22-35 years by industries / 环境与职业医学

Background As the population ages, there has been a growing focus on the decline in fertility. Research has identified age and fertility history as the primary influencing factors. Nevertheless, there is a deficiency in fundamental data regarding the fertility status among different industries. Objective To investigate the fertility status and influencing factors among female workers aged 22-35 years in different industries. Methods From July 2020 to February 2021, a cross-sectional survey was conducted using a staged sampling approach. This survey specifically targeted 22-35-year-old married female workers with a history of pregnancy in industries such as education, healthcare, finance, and telecommunications, totaling 22903 participants. The survey encompassed industry, demographic characteristics, pregnancy history, time to pregnancy (TTP), and other influencing factors. The influencing factors of decline in fertility were identified by chi-square test and Cox proportional hazards regression. Subsequent industry-specific Cox proportional hazards regression models were used to compared fertility decline patterns across a spectrum of industries after selected influencing factors were adjusted. Results Among the 22903 respondents, 19194 valid questionnaires were collected, with a valid recovery rate of 83.8%. The cumulative pregnancy rates (CRP) of 1-6 months and 1-12 months for the 22-35-year-old female workers were 67.23% and 91.33% respectively. The multivariate analysis showed that region, age, education level, personal annual income, housework time, coping style, gravidity, parity, and spontaneous abortion were influencing factors of fertility decline (P<0.05). Female workers with ≥3 gravidities and ≥2 spontaneous abortions had a higher risk of fertility decline, with hazard ratios (HR) and associated 95% confidence interval (95%CI) of 0.633 (0.582, 0.688) and 0.785 (0.670, 0.921) respectively (P<0.01). Compared to the education industry, the healthcare and finance industries showed a higher risk of fertility decline, with HR (95%CI) values of 0.876 (0.834, 0.920) and 0.909 (0.866, 0.954), respectively (P<0.05). These two HR (95%CI) values remained statistically significant [0.899 (0.852, 0.948) and 0.882 (0.833, 0.934) respectively, P<0.05)] after further adjustment with nine influencing factors such as region and age. Conclusion Regions, age, education level, personal annual income, housework time, coping style, pregnancy and childbirth times, and natural abortion times are influencing factors of fertility decline in female workers. Compared to the education industry, the healthcare and finance industries have a higher risk of declining fertility.

Current status of hand hygiene practices among primary healthcare workers and its influencing factors / 上海预防医学

ObjectiveTo investigate the current status and influencing factors of hand hygiene practices among primary healthcare workers， and to provide a reference for improving hand hygiene behavior in primary healthcare institutions. MethodsA self-designed questionnaire was used to conduct a survey among medical staff of seven community health service centers in Jiading District， Shanghai， using a cluster random sampling method. The data collected were subjected to descriptive statistics， reliability and validity tests， correlation analysis， and structural equation model fitting. ResultsA statistical difference in hand hygiene compliance was found among medical staff with varying occupational types and educational levels （P<0.05）， and medical staff in clinical departments exhibited higher levels of hand hygiene compliance （P<0.05）. In the health belief model， among the core variables， healthcare workers’ perceived benefits， perceived barriers， and self-efficacy had a direct impact on hand hygiene behavior， with direct effect values of 0.341， -0.152， and 0.234， respectively. Meanwhile， cues to action and perceived severity of COVID-19 infection indirectly affected hand hygiene behavior， with an indirect effect value of 0.066 and 0.062， respectively. ConclusionHealthcare workers generally exhibit a high degree of hand hygiene compliance， but there are variations in hand hygiene scores among healthcare workers with different characteristics. Enhancing healthcare worders’ perception of benefits， action cues， and self-efficacy while reducing perceived barriers can effectively improve their hand hygiene behavior.

Analysis of micronucleus rate in 394 radiation workers with cytokinesis-block micronucleus method / 中国辐射卫生

Objective To analyze the micronucleus rate of radiation workers and to provide accurate occupational health monitoring basis in radiation workers exposed to low-level ionizing radiation for a long time. Methods The radiation group consisted of 353 radiation workers who had been exposed to ionizing radiation during work, while the control group consisted of 41 radiation workers who had not yet been exposed to ionizing radiation before work. The cytokinesis-block micronucleus method was used to determine the micronucleus rate. Results The average micronucleus rate in the radiation group was significantly higher than that in the control group (t = −2.95, P < 0.05). In the radiation group, the micronucleus rate gradually increased with age, and the difference was statistically significant (F = 8.36, P < 0.05). The micronucleus rates of workers with > 10 and > 30 years of service were significantly higher than those of workers with < 10 years of service (χ2 = −44.79, −60.47, P < 0.05). The micronucleus rate in females was significantly higher than that in males (t = 3.93, P < 0.05). The micronucleus rates in the diagnostic radiology group and the industrial detection group were significantly higher than that in the control group (t = 3.51, 3.65, P < 0.05). Conclusion The micronucleus rate has increased among the radiation workers exposed to low-level ionizing radiation for a long time. It is necessary to further strengthen occupational health monitoring and radiation protection education for radiation workers, especially the medical workers that constitute the largest population of radiation exposure workers.

Analysis of occupational health examination data of 215 radiation workers from hospitals in Jiayuguan, China / 中国辐射卫生

Objective To understand the effects of long-term exposure to ionizing radiation on the health of radiation workers. Methods A total of 215 radiation workers were randomly selected and assigned to the exposure group and 197 non-radiation workers were assigned to the control group. The occupational health examination results of the two groups were compared and analyzed. Results The WBC count of the exposure group was lower than that of the control group (P＜0.05), while the abnormality rates of ocular lens, ECG, liver function, and thyroid function were significantly higher in the exposure group than in the control group (P＜0.05). In the exposure group, the abnormality rate of liver function was lower in females than in males, and the abnormality rate of hemoglobin level was higher in females than in males (P＜0.01). The abnormality rate of ocular lens increased with age (P＜0.01). The abnormality rate of hemoglobin level was different among different age groups (P＜0.01). The abnormality rate of ocular lens increased with increasing years of service. The abnormality rates of RBC count and hemoglobin level in the general radiotherapy group were higher than those in the interventional radiotherapy group (P＜0.01). Sex was the influencing factor for abnormal liver function (P＜0.01). Conclusion Prolonged exposure to low doses of ionizing radiation can adversely affect the health of radiation workers in medical institutions.

Analysis of factors influencing lymphocyte micronucleus in industrial radiation workers in Gansu Province, China / 中国辐射卫生

Objective To analyze micronucleus abnormalities in the peripheral blood lymphocytes of industrial radiation workers and the influencing factors, and to provide a reference for radiation protection. Methods The occupational health monitoring data of 661 industrial radiation workers were collected from the occupational health examination system of Gansu Provincial Center for Disease Control and Prevention. The abnormalities in the micronucleus of peripheral blood lymphocytes were analyzed. The influencing factors were identified by logistic regression. Results The micronucleus abnormality rate was 6.05% for the 661 industrial radiation workers. There was no significant difference in micronucleus abnormality rate between sexes (P > 0.05). Comparison of age groups showed that the rate of micronucleus abnormality increased with age, and workers over 50 years of age has the highest rate of micronucleus abnormalities (17.81%); there was a significant difference between age groups (P < 0.05). There was a significant difference in micronucleus abnormality rate between occupational categories (P < 0.05). There was a significant difference in micronucleus abnormality rate between groups with different years of work (P < 0.05). Logistic regression analysis showed that age and years of work were the risk factors for micronucleus abnormality rate (P < 0.05); age was an independent risk factor for micronucleus abnormality rate (P < 0.05). Conclusion The effect of low-dose ionizing radiation on micronucleus abnormality rate of industrial radiation workers is related to age and working years. Attention should be paid to occupational health monitoring of radiation workers, especially those with advanced age.

Current status of physical composition in medical workers and the evaluation effects of each indicator on nutritional status / 中华健康管理学杂志

Objective:To analyze the current status of physical composition in medical workers and the evaluation effects of each indicator on nutritional status.Methods:It was a cross-sectional study. A total of 313 medical workers from one hospital in Beijing were recruited from May 21st to June 22nd in 2021 for body composition measurement. Variance analysis was used to compare the age and gender distribution differences in total body fat, fat-free body weight, body fat percentage, skeletal muscle, protein, water, mineral, and basal metabolic rate indicators among the medical workers. Protein content, body fat percentage, and body mass index (BMI) were used to evaluate the nutritional status of medical workers, and the evaluation effects were analyzed too.Results:Of the 313 medical workers included in this study, there were 221 females and 92 males. In females, total body fat, fat-free body weight, skeletal muscle mass, and basal metabolic rate were all positively correlated with age ( F=19.823, 6.745, 6.561, 6.707) (all P<0.001). There was no significant differences in body composition indicators among male participants of different age groups (all P>0.05). The total body fat in female medical workers was significantly higher than that in males (17.58 kg vs 17.08 kg). Total water, protein, minerals, fat-free body weight, skeletal muscle mass, and basal metabolic rate were all significantly lower in female medical workers when compared with those in males [30.40 kg vs 41.78 kg, 8.07 kg vs 11.26 kg, 2.96 kg vs 3.88 kg, 41.43 kg vs 56.92 kg, 22.37 kg vs 31.98 kg, 1 264.86 kcal (1 kcal=4.184 kJ) vs 1 599.39 kcal] (all P<0.05). Among the medical workers, 190 cases (60.7%) had normal protein levels, 103 cases (32.9%) had protein deficiencies, and 20 cases (6.3%) had protein levels exceeding the standard. Additionally, 110 cases (35.1%) had normal body fat ratios, 193 cases (61.6%) had excessive body fat ratios, and 10 cases (3.2%) had insufficient body fat ratios. Concerning body mass index (BMI), 198 cases (63.2%) had normal BMI. Among them, 145 cases (73.2%) had normal body fat ratios, 53 cases (26.7%) had excessive body fat ratios, 108 cases (54.5%) had normal protein levels, 89 cases (44.9%) had insufficient protein levels, and 1 case (0.5%) had excessive protein levels. Furthermore, 103 cases (32.9%) had excessive BMI, with 20 cases (19.4%) having normal body fat ratios indicating the muscle/bone strength type, and 83 cases (80.6%) having normal protein levels indicating the muscular type. Lastly, 12 cases (3.8%) had insufficient BMI, including 6 cases (50.0%) with normal body fat ratios. Conclusion:There are significant gender differences in body composition distribution among healthcare workers. In females, total body fat, lean body mass, skeletal muscle, and basal metabolic rate are all correlated with age. Evaluating individual nutrition status based solely on BMI would underestimate the obesity rate. Individuals with low or high protein/muscle content should not be assessed using BMI.

Effects of coal mine dust on interleukin-6 and let-7e in rats / 预防医学

Objective@#To investigate the changes in the levels of interleukin-6 (IL-6) and let-7e in rats induced by coal mine dust, so as to provide the basis for the mechanism of coal worker's pneumoconiosis (CWP).@*Methods@#Sixty-four clean and healthy male Sprague-Dawley rats were randomly divided into the control group, coal dust group, mixed dust group (mixed coal and silica dust) and quartz group. The rats in the control group were exposed to 1 mL physiological saline by non-exposure tracheal perfusion, and the rats in the dust-exposed groups were exposed to 1 mL dust suspension. Rats were sacrificed by anesthesia after 1 month and 6 months, lung tissue was observed using hematoxylin-eosin staining, the pathological change in the lungs was scored using the Szapiel scoring system, the levels of IL-6 in the bronchoalveolar lavage fluid were detected using enzyme-linked immunosorbent assay, and the expression of let-7e was determined by quantitative real-time PCR.@*Results@#A month after exposure, a small amount of coal spots and inflammatory exudation were observed in the lung tissue of the coal dust group and the mixed dust group. The quartz group showed tissue structure destruction and mild fibrosis and thickening of alveolar septum. Six months after exposure, there were more coal spots and slightly thickened alveolar septum in the coal dust group, and hyperplasia of pulmonary interstitial fibers, destruction of alveolar structure and silica nodules were observed in the mixed dust group. In the quartz group, the alveolar structure was obviously destroyed, the interstitial fiber proliferation was significant and silica nodules were seen. Two-factor analysis of variance showed that the interaction between duration of exposure and dust type significantly influenced the pathological score of lung tissue, IL-6 levels, and let-7e expression levels (P<0.05). Under the same dust type, the pathological score of lung tissue and IL-6 levels were higher at 6 months after exposure than at 1 month, while the relative expression of let-7e was lower at 6 months after exposure than at 1 month (all P<0.05). Under the same duration of exposure, the pathological score of lung tissue and IL-6 levels were higher in the dust-exposed groups than in the control group, while the relative expression of let-7e was lower in the dust-exposed groups than in the control group (all P<0.05).@*Conclusions@#Coal dust can cause an increase in levels of IL-6 and a decrease in let-7e expression in rats. The type of dust and duration of exposure can interactively affect IL-6 and let-7e.

Prevalence of work-related musculoskeletal disorders among vegetable greenhouse workers / 预防医学

Objective@#To investigate the prevalence of work-related musculoskeletal disorders (WMSDs) and influencing factors among vegetable greenhouse workers, so as to provide insights into relevant intervention measurements.@*Methods@#Workers from 4 vegetable greenhouse villages were sampled in the suburbs of Xining City using a cluster sampling method from March to April 2023. Participants' demographic information, characteristics of greenhouse operation and prevalence of WMSDs were collected using questionnaire surveys. Factors affecting the prevalence of WMSDs among vegetable greenhouse workers were identified using a multivariable logistic regression model.@*Results@#A total of 550 questionnaires were distributed, and 518 valid questionnaires were recovered, with an effective response rate of 94.18%. There were 264 males (50.97%) and 254 females (49.03%), and 269 participants (51.93%) aged 50 years and older. The prevalence of WMSDs among vegetable greenhouse workers was 40.93% (212 cases). Waist, neck and back were mainly affected, with 185 (35.71%), 157 (30.31%), and 153 (29.54%) cases, respectively. Multivariable logistic regression analysis showed that workers who smoke (OR=2.406, 95%CI: 1.133-5.110), worked 8 hours and longer per day (OR=6.618, 95%CI: 3.492-12.542) and lift heavy loads of about 20 kg (OR=1.770, 95%CI: 1.013-3.092) had a higher risk of WMSDs.@*Conclusions@#WMSDs occurred in 40.93% of vegetable greenhouse workers in Xining City, and waist, neck and back were mainly affected. Smoking, working duration and lifting heavy loads may influence the prevalence of WMSDs among vegetable greenhouse workers in Xining City.

Awareness of hepatitis C prevention and control knowledge among female sex workers in Jiaxing City / 预防医学

Objective@#To investigate the awareness of hepatitis C prevention and control knowledge and its influencing factors among female sex workers (FSWs) in Jiaxing City, Zhejiang Province.@*Methods@#According to the HIV/AIDS Sentinel Surveillance Plan, FSWs at ages of 15 to 65 years monitored by the national AIDS surveillance sentinel in Jiaxing City were recruited, and demographic information, awareness of hepatitis C prevention and control knowledge and related behaviors were collected by questionnaire surveys. Factors affecting the awareness of hepatitis C prevention and control knowledge were identified by a multivariable logistic regression model.@*Results@#A total of 430 questionnaires were allocated, and 412 were valid, with an effective rate of 95.81%. The respondents had a mean age of (28.58±4.93) years, and included 258 unmarried FSWs (62.62%), 344 with registered residence outside Zhejiang Province (83.50%), 212 with junior high school education or below (51.46%) and 243 from high-end entertainment places (58.98%). The overall awareness of hepatitis C prevention and control knowledge among FSWs was 20.39%, and the awareness of "Transfusion of blood containing hepatitis C virus may acquire hepatitis C" (38.83%) and the awareness of "tattooing, eyebrow tattooing and ear piercing in streets or small shops may infect hepatitis C" (38.11%) were relatively low. Multivariable logistic regression analysis identified marital status (divorced or widowed, OR=0.161, 95%CI: 0.054-0.482), educational level (high school or technical secondary school, OR=2.568, 95%CI: 1.446-4.560; junior college or above, OR=6.110, 95%CI: 2.658 -14.045) and grade of entertainment places (high-end entertainment places, OR=2.756, 95%CI: 1.525-4.982) as factors affecting the awareness of hepatitis C prevention and control knowledge among FSWs.@*Conclusion@#FSWs in Jiaxing City have a low awareness of hepatitis C prevention and control knowledge, especially lacking of knowledge about the transmission routes and prognosis of hepatitis C.

Smoking status among grassroots healthcare workers in Shaoxing City / 预防医学

Objective@#To investigate the prevalence and influencing factors of smoking among grassroots healthcare workers in Shaoxing City, Zhejiang Province, so as to provide insights into effective implementation of tobacco control measures in primary healthcare organizations.@*Methods@#Grassroots healthcare workers of community health service centers (health institutes) were sampled from four streets (townships) in each of 6 counties (cities, districts) in Shaoxing City using a stratified cluster sampling method from May to June 2023. Participants' demographics, current smoking and quit smoking information were collected through questionnaire surveys, and factors affecting current smoking among grassroots healthcare workers were identified using a multivariable logistic regression model.@*Results@#Totally 2 801 questionnaires were allocated, and 2 595 valid questionnaires were recovered, with an effective recovery rate of 92.65%. Participants included 719 men (27.71%) and 1 876 women (72.29%), with a mean age of (39.39±10.11) years. There were 119 current smokers and the prevalence of current smoking was 4.59%. The median number of cigarettes smoked per day was 10.00 (interquartile range, 14.25) and the median duration of smoking was 20.00 (interquartile range, 15.00) years. There were 52 people with intention to quit smoking (43.70%), and 51 people with attempts to quit smoking (42.86%). Multivariable logistic regression analysis identified men (OR=22.998, 95%CI: 10.912-48.473), alcohol consumption (OR=3.907, 95%CI: 2.528-6.037) and length of service (15 years and more, OR=3.115, 95%CI: 1.305-7.434) as factors affecting current smoking among grassroots healthcare workers.@*Conclusions@#The prevalence of current smoking among grassroots healthcare workers in Shaoxing City is 4.59%, and there is low willingness to quit smoking. Current smoking status may be affected by gender, alcohol consumption and length of service.

Mental health literacy among grassroots mental health workers in Xinjiang Uygur Autonomous Region / 预防医学

Objective@#To investigate the level of mental heath literacy and influencing factors among grassroots mental heath workers in Xinjiang Uygur Autonomous Region, so as to provide insights into relevant intervention measurements.@*Methods@#Full-time (part-time) grassroots mental heath workers were sampled from grassroots healthcare institution (community health service centers and township health institutes) in Xinjiang Uygur Autonomous Region. Participants' demographics and achievements of the target for mental heath literacy were collected through self-designed questionnaires and the Mental Health Literacy Questionnaire, and factors affecting the achievements of the target for mental heath literacy were identified using a multivariable logistic regression model.@*Results@#A total of 3 382 respondents were recovered, including 771 males (22.80%) and 2 611 females (77.20%), and had a mean age of (35.59±9.21) years. There were 491 respondents that met the target of the mental health literacy (14.52%). Multivariable logistic regression analysis showed that grassroots mental heath workers who were Han Ethnicity (OR=2.735, 95%CI: 2.166-3.454), had high levels of education (college, OR=1.722, 95%CI: 1.299-2.283; bachelor degree and above, OR=2.681, 95%CI: 1.966-3.656), worked at community health service centers (OR=1.435, 95%CI: 1.142-1.803), physician (OR=1.877, 95%CI: 1.239-2.843) and engaged in mental health prevention and treatment for 2 to <5 years (OR=1.388, 95%CI: 1.059-1.818) were more likely to meet the target of the mental health literacy.@*Conclusion@#The proportion of achieving the target for mental health literacy is low among grassroots mental health care workers in Xinjiang Uygur Autonomous Region, and ethnicity, educational level, organization category, occupation and service length of mental health prevention and treatment are the influencing factors.

Occupational delay of gratification among community healthcare workers / 预防医学

Objective@#To investigate the occupational delay of gratification among community healthcare workers and its influencing factors, so as to provide insights into the sustainable development of primary healthcare personnel.@*Methods@#The in-service community healthcare workers from 5-7 community health service centers in 9 cities (prefectures) of Guizhou Province were selected using a multi-stage stratified random sampling method. Gender, age, and educational level and other basic information were collected through questionnaire surveys. The status of occupational delay of gratification was investigated using the Occupational Delay of Gratification Scale. Multiple linear regression model was used to analyze the influencing factors of occupational delay of gratification.@*Results@#A total of 2 076 respondents were surveyed, including 367 males (17.68%) and 1 709 females (82.32%). There were 112 respondents (5.39%) with secondary vocational school degree or below, 872 respondents (42.00%) with junior college degree, 1 087 respondents (52.36%) with bachelor's degree, and 5 respondents (0.24%) with master's degree or above. There were 665 respondents (32.03%) with managerial positions. The monthly income of 1 705 respondents (82.13%) was ≤5 000 Yuan. The total score of occupational delay of gratification was (33.22±4.33) points, and the total average score was (2.77±0.36) points. The average scores of work delay, career delay and persistence were (2.67±0.48), (2.96±0.45) and (2.75±0.46) points, respectively. Multiple linear regression analysis identified educational level (junior college, β=0.089; bachelor's degree, β=0.088), management position (not have, β=-0.046) and monthly income (>6 000 Yuan, β=0.085) as factors affecting occupational delay of gratification (all P<0.05).@*Conclusion@#The community healthcare workers with an education below secondary vocational school, no management position and lower income have relatively lower level of occupational delay of gratification.

Multi-slice spiral computerized tomography image characteristics of coal workers with pneumoconiosis / 环境与职业医学

Background Multi-slice spiral computerized tomography (MSCT) can be used as an auxiliary diagnosis of chest radiography in diagnosis of pneumoconiosis, but there are few studies on the correlations between interstitial images and stage classification of coal workers' pneumoconiosis in the existing literature. Objective To present MSCT imaging manifestations and distribution characteristics of coal workers' pneumoconiosis and complications, evaluate correlations between coal workers' pneumoconiosis stages and pulmonary interstitial lesions, and provide a reliable imaging diagnosis basis for pneumoconiosis interstitial lesions. Methods From June 2022 to June 2023, a total of 1002 patients with coal workers' pneumoconiosis confirmed by the pneumoconiosis diagnostic and identification group in the Department of Occupational Diseases of the Emergency General Hospital were enrolled. MSCT was used to observe the abnormal imaging manifestations of the lungs of coal workers' pneumoconiosis patients and the diseases of pulmonary fibrosis related to their own diseases (thickening of the interlobular septum, bronchial perivascular interstitial mass thickening, parenchymal banding, subpleural line, intralobular interstitial thickening, honeycomb, and subpleural interstitial thickening), the occurrence of coal workers' pneumoconiosis and complications (old tuberculosis, active tuberculosis, pneumonia, atelectasis, lung cancer, bronchiectasis), and the density, size, and location of pneumoconiosis nodules. Imaging data were analyzed and statistically processed. Results All 1002 patients were male, with an average age of (60.71±6.87) years and an average dust exposure time of (23.01±7.80) years. Among them, there were 470 patients with stage I, 422 patients with stage II, and 110 patients with stage III. There were significant differences in the distribution of thickening of the interlobular septum, bronchial perivascular interstitial mass thickening, parenchymal banding, intralobular interstitial thickening, subpleural interstitial thickening, and honeycomb across different stages (P<0.05). Statistically significant differences in p, q, and r subsets of round nodules were found in patients with pneumoconiosis at different stages (P<0.05). Observed nodule types included solid nodules, pure ground-glass shadow nodules, and partial solid nodules. There were statistically significant differences in pulmonary tuberculosis and bronchiectasis among different stages of coal workers' pneumoconiosis (P<0.05). There were statistically significant differences in interstitial shadows and patches combined with interstitial shadows among different stages of pneumoconiosis complicated with pneumonia (P<0.05). Conclusion MSCT provides images of the progression of coal workers' pneumoconiosis and have a certain relationship with the stages of coal workers' pneumoconiosis, which is conducive to the formulation of reasonable treatment plans in the early clinical stage. Therefore, in the diagnosis and treatment of pneumoconiosis, a great attention should be paid to the imaging technology of chest computerized tomography, especially the use of MSCT examination.

Research hotspots and trends in railway workers' health at home and abroad: A bibliometric analysis / 环境与职业医学

Background The development of railways has a long history, but there is limited research on the health of railway workers at home and abroad. China's high-speed railway development has attracted worldwide attention in recent years, and it is of great significance to study how to promote the health of this occupational population to ensure the safety of railway transportation. Objective To identify development trends and hotspots in the field of railway workers' health at home and abroad. Methods The research literature related to the health of railroad workers dated from January 1, 1973 to December 31, 2022 was searched using the China Knowledge Network Infrastructure (CNKI) and Web of Science Core Collection (WoS) databases. After screening and cleaning, the included literature was subjected to bibliometric analysis by applying CiteSpace 6.1R6 software to visualize and analyze literature co-citation, keyword emergence, and keyword timeline graphs, and by VOSviewer 1.6.19 to visualize and analyze country/region collaboration, keyword co-occurrence, and keyword clustering. Results During the period from 1973 until 2022, a total of 273 Chinese literature and 165 English literature were found to report studies related to the health of railway workers. The Chinese literature began to grow rapidly in 2009 and peaked in 2015, and the number of English literature published in a relatively flat state over the studied period. The country with the most papers indexed by Science Citation Index (SCI) was the United States (58 papers), which also presented the richest international collaborations. The document with the highest domestic citation frequency was published in the Chinese Journal of Mental Health in 1994, and the document with the highest SCI citation frequency was published in the American Journal of Epidemiology in 1994. The keyword co-occurrence analysis showed that the included Chinese literature mainly focused on health checkups, health management, hypertension, mental health, and chronic diseases and their prevalence; the included English literature focused on mortality, lung cancer, epidemiology, and diesel engine exhaust and its exposure. The analysis of emergent words showed that health management, frontline workers, and occupational stress were the topics of interest in Chinese literature in the last five years, while occupational stress, diesel exhaust emissions, and noise exposure were the topics of interest in English literature in the last ten years. The results of the timeline graph analysis suggested that the recent research directions in Chinese literature were health intervention, humanistic care, staff canteens, etc. There were few English-language articles related to this area after 2010. Conclusion The research hotspots of railroad practitioners' health will keep changing with the development of high-speed railways in countries around the world. The outstanding rise of Chinese literature issued in the last decade has been in striking contrast to the slow progress and decreasing of English literature. The Chinese literature has gradually expanded the hotspots from chronic diseases to health management, occupational stress, and sleep disorders.