Analyzing the monitoring results of noise hazards in workplace of key industries in Guangdong Province in 2019 / 中国职业医学

Objective: To analyze the status of noise hazard in workplace of key industries in Guangdong Province. Methods: A total of 1 061 enterprises from 14 key industries in 21 prefecture-level cities in Guangdong Province were selected as the research subjects using stratified sampling method. The occupational health survey was carried out, and the noise intensity in the workplace was detected. Results: There were 12 606 workplaces and 5 570 work sites involved among 1 061 enterprises. The median and the 0-100th percentile value ［M (P0-P100)］ of noise intensity in workplace were 82.6 (46.5-112.6) dB(A), and 35.03% of the workplace exceeded the national noise intensity standard. The regions and industry with the highest rate of noise exceeded the national noise intensity standard in workplace were in the northern part of Guangdong and the stone processing industry respectively. The M (P0-P100) of noise intensity in the work sites was 83.7 (47.5-106.2) dB(A), and 36.00% of the work sites exceeded the national noise intensity standard. The regions and industry with the highest rate of noise exceeded the national noise intensity standard in work sites were in the Pearl River Delta region and the ferrous metal mining and dressing industry respectively. The rate of noise protection facilities setting was 66.45%, and the validity of personal protection was 61.73%. The occupational medical examination was performed in 73.24% of the research subjects, and 3.25% of the result was abnormal. The industry with the highest occupational medical examination rate was nonferrous metal smelting and rolling processing, and the industry with the highest abnormal rate of occupational medical examination was stone processing industry. Conclusion: Noise hazards in workplaces of key industries in Guangdong Province are relatively severe, necessitating strengthened supervision and management, noise control measures, and efforts to reduce noise exposure levels in workplaces and work sites.

A qualitative study on the suggestion of key nursing techniques and procedure optimization by medical staffs for patients with nuclear exposed in hospital / 中国实用护理杂志

Objective:To understand the views and suggestions of medical staff on the key nursing techniques and norms of in-hospital treatment of patients with nuclear exposure, so as to provide reference for the continuous optimization of follow-up processes.Methods:From September to October 2021,purpose sampling was adopted to select doctors and nurses who engaged in medical emergency rescue of nuclear exposure-related work in two divisions of the Nuclear Accident Medical Emergency Center of the National Health Commission as the research subjects, using a combination of online and offline methods to carry out semi-structured interviews with 6 research subjects,using content analysis methods in descriptive research for data analysis.Results:A total of four themes were refined including the need for the establishment of nursing technology and process specification for nuclear accident emergency rescue specialty; the need for specialized training of nursing technology in nuclear accident emergency rescue; the need for the construction of specialized nursing team for nuclear accident emergency rescue; the need to strengthen the closeness of multi-team cooperation.Conclusions:The current in-hospital care technology and processes for nuclear exposed patients need to be further refined and standardized, and in the future, we need to establish a perfect in-hospital care technology and processes for nuclear exposed patients, and according to the corresponding technology and processes, strengthen nursing staff professional training and simulation training in nuclear accident emergency rescue, and establish a nuclear emergency rescue professional nursing team to promote the development of nuclear accident emergency rescue nursing specialists.

Investigation of occupational hazard emergencies in power grid enterprises in three regions from 2018 to 2020 / 中国职业医学

Objective: To analyze the occurrence and risk factors of various occupational hazard incidents in China's power grid enterprises. Methods: A total of 4 191 workers from eight power grid enterprises in Jilin Province, Shandong Province, and Chongqing City were selected using a convenience sampling method. Their exposure in workplace and the occurrence of various occupational hazard incidents from 2018 to 2020 were investigated. Results: Among the participants, 71.7% were engaged in outdoor operations. The incidence rates of occupational hazard emergency, ranking from high to low, were electric ophthalmia, acute mountain sickness, heatstroke, electro-flash dermatitis, sunburn, cold injury, solar ophthalmia, and gas poisoning in confined space, with the rate of 42.3%, 42.3%, 38.1%, 24.3%, 17.4%, 16.5%, 10.0%, and 1.3%, respectively (P<0.01). The results of multivariate logistic regression analysis showed that workers in Jilin Province had a higher risk of cold injury compared to those in Shandong Province and Chongqing City (all P<0.01). Workers in Chongqing City had a higher risk of solar ophthalmia than those in Jilin Province (P<0.01). Workers in inspection and maintenance positions had a higher risk of heatstroke and sunburn compared to those in substation positions (all P<0.05). Power grid workers with protective systems in enterprises had a lower risk of sunburn and solar ophthalmia compared to those without protective systems (all P<0.01). The risks of sunburn and solar ophthalmia among power grid workers increased with age and daily outdoor working time (all P<0.05). Taking protective measures was a protective factor against heatstroke and cold injury (all P<0.01). Conclusion: Power grid workers face the risk of various occupational hazard incidents. Relevant organizations should conduct targeted preventive measures based on regional and worker characteristics, and ensure the implementation of protective systems in different work environments.

Efficacy of machine learning models versus Cox regression model for predicting prognosis of esophagogastric junction adenocarcinoma / 南方医科大学学报

OBJECTIVE@#To compare the performance of machine learning models and traditional Cox regression model in predicting postoperative outcomes of patients with esophagogastric junction adenocarcinoma (AEG).@*METHODS@#This study was conducted among 203 AEG patients with complete clinical and follow-up data, who were treated in our hospital between September, 2015 and October, 2020. The clinicopathological data of the patients were processed for analysis using R language package and divided into training and validation datasets at the ratio of 3:1. The Cox proportional hazards regression model and 4 machine learning models were constructed for analyzing the datasets. ROC curves, calibration curves and clinical decision curves (DCA) were plotted. Internal validation of the machine learning models was performed to assess their predictive efficacy. The predictive performance of each model was evaluated by calculating the area under the curve (AUC), and the model fitting was assessed using the calibration curve.@*RESULTS@#For predicting 3-year survival based on the validation dataset, the AUC was 0.870 for Cox proportional hazard regression model, 0.901 for eXtreme Gradient Boosting (XGBoost), 0.791 for random forest, 0.832 for support vector machine, and 0.725 for multilayer perceptron; For predicting 5-year survival, the AUCs of these models were 0.915, 0.916, 0.758, 0.905, and 0.737, respectively. For internal validation, the AUCs of the 4 machine learning models decreased in the order of XGBoost (0.818), random forest (0.758), support vector machine (0.0.804), and multilayer perceptron (0.745).@*CONCLUSION@#The machine learning models show better predictive efficacy for survival outcomes of patients with AEG than Cox proportional hazard regression model, especially when proportional odds assumption or linear regression models are not applicable. XGBoost models have better performance than the other machine learning models, and the multi-layer perception model may have poor fitting results for a limited data volume.

Research progress on the effects of ionizing radiation exposure on cardiovascular systems / 中国辐射卫生

With the rapid development and widespread application of medical imaging technologies, ionizing radiation has become unavoidable in human lives. Accurate assessment of healthy effects of ionizing radiation is of great significance to reduce the risk of exposure to radiation. Increasing evidence has proven the impact of ionizing radiation on cardiovascular systems. This article reviews the effects of ionizing radiation on heart, blood pressure, and blood vessels and the possible mechanisms, so as to provide insights into implementation of targeted protective interventions and reduction of ionizing radiation hazard.

Influencing Factors of HIV/ AIDS Death Based on Bayesian Cox Proportional Hazard Regression Model / 中山大学学报(医学科学版)

ObjectiveTo understand the composition of related characteristics of HIV/AIDS cases in Lanzhou and analyze the influencing factors of AIDS-related deaths. MethodsThe information of HIV/AIDS cases reported in Lanzhou from 2011 to 2019 was collected， the method of survival was used analysis and Bayesian Cox Proportional Hazard Regression Model was constructed to analyze the related factors of death. ResultsA total of 2 312 HIV/AIDS patients were selected in this study， including 45 AIDS-related deaths. The results of multivariate regression showed that the older the patients were， the higher the risk of death was； the risk of death of AIDS patients at the time of diagnosis was 13.91 times higher than that of HIV-infected patients； Patients who received CD4 testing had a lower risk of death than those who did not； The risk of death was 0.22 times higher among those who received antiretroviral therapy than those who did not receive antiretroviral therapy. ConclusionsAge at diagnosis， course of disease， antiviral therapy were the influencing factors of AIDS-related death in HIV/AIDS patients in Lanzhou. Therefore， it is necessary to strengthen health education for AIDS-related groups， advocate early detection， early diagnosis， and early treatment， expand the coverage of AIDS testing and treatment， prolong the survival time of AIDS patients.

Review of health hazards and control strategies of sugar-sweetened beverages / 环境与职业医学

The global production and consumption of sugar-sweetened beverages (SSBs) has been on the rise in recent decades. The intake of SSBs has been increasing in China, and it is more prevalent among children and adolescents. As research continues to intensify, more and more studies have shown that, in addition to the increased risks of dental caries and obesity reported by the World Health Organization (WHO), SSBs intake can also increase risks of chronic diseases such as diabetes, cardiovascular disease, gout, and cancer, and early death, adding to the burden of disease. Due to the health risks associated with the overconsumption of SSBs, many countries around the world have taken measures to control the intake. The main measures currently in place are taxation of SSBs, restrictions on marketing and sales of SSBs, front-of-package labeling and reducing availability of SSBs in schools. In China, the main measures currently in place are to control the sales of beverages in schools, with Shenzhen taking the lead in implementing health warning labeling to alcoholic beverages and carbonated beverages, extending the measures to reduce SSBs intake beyond school grounds.

Raising awareness of health risks of added sugar and limiting its excessive intake / 环境与职业医学

Recently, limiting the excessive intake of added sugar has gradually become an important topic in the field of nutrition. Sugar, sweetened dairy products, and sugar sweetened beverages (SSBs) are the three most important contributions of added sugar in China. For children, adolescents, and young adults, the issue of excessive intake of SSBs is not optimistic for now. Although the daily per capita intake of SSBs in China is currently at a low level on a global scale, the overall trend of SSBs production and consumption are rapidly increasing. Excessive intake of added sugar adversely affects glycolipid metabolism and multiple metabolic diseases, which is widely concerned and discussed. For the purpose of limiting added sugar, the gradually popularized use of sugar substitutes poses entirely new challenges. Multiple sugar-restriction strategies have been implemented and validated abroad. Given the rapid growth of consumption of added sugar and increasing evidence of related health hazards in China, there is a great need to improve the awareness of eating less added sugar for Chinese residents by multilevel strategies, and finally reduce the consumption of SSBs. In this article, the definition, history, and development of added sugar, main dietary sources, recommended limits, and both domestic and international consumption trends of added sugar were narrated. Then, the main health risks of added sugar and the global sugar-restriction strategies were briefly described. The article calls for raising awareness among Chinese residents of the health hazards of added sugar and limiting its excessive intake.

Levels and health risks of exposure to neonicotinoid insecticides among 5-year-old children: Based on Laizhou Wan Birth Cohort in Shandong Province / 环境与职业医学

Background Neonicotinoid insecticides (NEOs) are emerging synthetic insecticides that have been used in various pest management regimens worldwide as alternatives to conventional insecticides. Recently, several studies have indicated that humans are widely exposed to NEOs, but limited is known about the levels and associated health risks of NEOs exposure among children. Objective To estimate exposure levels of four kinds of NEOs in urine samples among 5-year-old children from Laizhou Wan, Shandong Province, and to evaluate health risks of single and cumulative exposure to NEOs among children in this area. Methods A total of 205 children who participated in the 5-year-old follow-up in Laizhou Wan Birth Cohort (LWBC) were included. Urinary concentrations of four NEOs [imidacloprid (IMI), acetamiprid (ACE), clothianidin (CLO), and thiamethoxam (THM)] were measured by high-performance liquid chromatography coupled with triple quadrupole mass spectrometry. Based on the detected NEOs concentrations, estimated daily intake (EDI) was calculated, and the health risk of exposure to single NEO was assessed using hazard quotient (HQ, risk threshold=1). A relative potency factor (RPF) approach was used to standardize the concentrations of the four NEOs by IMI to calculate their cumulative concentrations. Then, the health risk of cumulative exposure to the four NEOs was further evaluated based on the HQ method. Results The detection rates of the four NEOs in the 5-year-old children were all above 90%, and their median creatinine-adjusted urinary concentrations were in the order from high to low as follows: CLO (1.373 μg·g−1) > THM (0.628 μg·g−1) > IMI (0.310 μg·g−1) > ACE (0.073 μg·g−1). Of the four NEOs, the median EDI of IMI was 0.035 µg·kg−1·d−1, higher than those of CLO (0.032 µg·kg−1·d−1), THM (0.012 µg·kg−1·d−1), and ACE (0.002 µg·kg−1·d−1). The maximum HQ values of IMI, CLO, THM, and ACE were 0.168, 0.152, 0.055, and 0.022, respectively, which were all far lower than the risk threshold of 1. The median concentration of cumulative exposure to the four NEOs standardized by IMI was 21.241 μg·g−1, and its median EDI was 2.370 µg·kg−1·d−1. The maximum HQ of cumulative exposure to the four NEOs was only 0.694, which also did not exceed the risk threshold of 1. Conclusion NEOs exposure is common among the 5-year-old children in Laizhou Wan, Shandong. Although there is no obvious health risk associated with single and cumulative exposure to NEOs in the children in this area, their exposure levels of NEOs are higher than those in some foreign areas. The adverse health effects of long-term exposure to low dose of NEOs deserve our extensive attention.

Application of two occupational health risk assessment methods for dust hazards in non-coal underground mines / 环境与职业医学

Background The mining of non-coal underground mines may come into contact with various types of dust, such as lead, zinc, copper, and non-metallic minerals. Dust of various kinds commonly exists in all aspects of mining and selection, and is one of the main occupational hazard groups in non-coal underground mines. Objective To compare the application of two risk assessment methods in the occupational health risk assessment of productive dust in non-coal underground mines, and to provide a reference for the selection of dust hazard health risk assessment methods and the management of dust hazards in non-coal mines. Methods A field investigation of the dust hazards of three typical non-coal underground mining enterprises (lead-zinc mines, copper mines, and fluorite mines) was carried out, and the comprehensive index method and the occupational health risk assessment method from the International Council on Mining and Metals (ICMM) were used to perform risk assessments. The comprehensiveindex method considers the following factors: dust monitoring data, the aerodynamic diameter of dust, hazard control measures, occupational health management, daily usage, and daily exposure time to determine exposure levels. The ICMM method determines the risk level based on the consequences caused by dust, exposure probability, exposure time, and uncertainty coefficient. Kendall consistency test was used to compare agreement between the results generated by the two methods. Results The results generated by the comprehensive index method were as follows: level 3 (medium risk) or level 4 (high risk) for silica dust or lead dust; level 1 (negligible risk) or level 2 (low risk) for other dust (dust with free SiO2 content<10% and containing lead, zinc, and copper, using other dust limit values for comparison), fluorspar mixed dust, fluorine and its compounds, zinc oxide, and copper dust. The risk levels graded by the ICMM method were as follows: level 4 (very high risk) and level 3 (high risk) for exposure to silica dust and lead dust, respectively, and level 1 (tolerable risk) or level 2 (potential risk) for exposure to other dust (dust with free SiO2 content <10% and containing lead, zinc, and copper, using other dust limit values for comparison), fluorspar mixed dust, fluorine and its compounds, zinc oxide, and copper dust. The consistency level between the results graded by the two methods was very high (Kendall W coefficient=0.974, P < 0.05). Conclusion For the occupational health risk assessment of productive dust in non-coal underground mines, the consistency level of risk assessment results between the ICMM method and the comprehensive index method is very high. The ICMM method is more convenient to operate and should be preferred in assessing health risks of dust hazard in non-coal underground mines.

Thoughts on improving comprehensive risk assessment method of occupational disease hazards of employers / 环境与职业医学

The National Disease Control and Prevention Bureau and the National Health Commission jointly issued an announcement on Notice on Carrying out Pilot Work of Occupational Health Classification Supervision and Law Enforcement, which presented a method of comprehensive risk assessment method of occupational disease hazards of employers. This method embraces relevant factors at full scale and is simple in operation, but its applicability and accuracy of assessment results need further practical study. Based on the steps of occupational health risk assessment and proven occupational health risk assessment methods available at home and abroad, this paper proposed improvements and discussed the comprehensive risk assessment method of occupational disease hazards of employers, so as to provide a technical basis to implement the occupational disease hazard classification management of employers for relevant government supervision departments.

Sex- and age-specific impacts of smoking, overweight/obesity, hypertension, and diabetes mellitus in the development of disabling dementia in a Japanese population

BACKGROUND@#Sex- and age-specific impacts of cardiovascular risk factors on the development of dementia have not been well evaluated. We investigated these impacts of smoking, overweight/obesity, hypertension, and diabetes mellitus on the risk of disabling dementia.@*METHODS@#The study participants were 25,029 (10,134 men and 14,895 women) Japanese aged 40-74 years without disabling dementia at baseline (2008-2013). They were assessed on smoking status (non-current or current), overweight/obesity (body mass index ≥25 kg/m2 and ≥30 kg/m2, respectively), hypertension (systolic blood pressure ≥140 mmHg, diastolic blood pressure ≥90 mmHg or any antihypertensive medication use), and diabetes mellitus (a fasting serum glucose ≥126 mg/dL, non-fasting glucose ≥200 mg/dL, hemoglobin A1c ≥6.5% by the National Glycohemoglobin Standardization Program or glucose-lowering medication use) at baseline. Disabling dementia was identified as the level of care required ≥1 and cognitive disability grade ≥IIa according to the National Long-term Care Insurance Database. We used a Cox proportional regression model to estimate hazard ratios and 95% confidence intervals (95% CIs) of disabling dementia according to the cardiovascular risk factors and calculated the population attributable fractions (PAFs).@*RESULTS@#During a median follow-up of 9.1 years, 1,322 (606 men and 716 women) developed disabling dementia. Current smoking and hypertension were associated with a higher risk of disabling dementia in both sexes, whereas overweight or obesity was not associated with the risk in either sex. Diabetes mellitus was associated with a higher risk only in women (p for sex interaction = 0.04). The significant PAFs were 13% for smoking and 14% for hypertension in men and 3% for smoking, 12% for hypertension, and 5% for diabetes mellitus in women. The total PAFs of the significant risk factors were 28% in men and 20% in women. When stratified by age, hypertension in midlife (40-64 years) was associated with the increased risk in men, while diabetes mellitus in later-life (65-74 years) was so in women.@*CONCLUSIONS@#A substantial burden of disabling dementia was attributable to smoking, and hypertension in both sexes and diabetes mellitus in women, which may require the management of these cardiovascular risk factors to prevent dementia.

Prevalence and antimicrobial resistance of Escherichia coli and Salmonella spp. in animal feed in Colombia / Prevalencia y resistencia a los antimicrobianos de Escherichia coli y Salmonella spp. en los alimentos para animales en Colombia / Prevalência e resistência a antimicrobianos de Escherichia coli e Salmonella spp. em ração animal na Colômbia

ABSTRACT Objective. To determine the prevalence and antimicrobial resistance of Escherichia coli and Salmonella spp. in animal feed samples collected between 2018 and 2021 in Colombia. Methods. This was a laboratory-based cross-sectional study using routine data from the program for inspection, surveillance, and control of animal feed at the Colombian Agriculture Institute. Samples of animal feed for swine, poultry, canine, feline, leporine, piscine, and equine species were processed for detection of E. coli and Salmonella spp. using enrichment and selective culture methods. Isolates were tested for antimicrobial susceptibility using an automated microdilution method. Results. Of 1 748 animal feed samples analyzed, 83 (4.7%) were positive for E. coli and 66 (3.8%) for Salmonella spp. The presence of E. coli and Salmonella spp. was highest in feed for poultry (6.4% and 5.5%) and swine (6.1% and 4.3%). Antimicrobial resistance testing was performed in 27 (33%) E. coli isolates and 26 (39%) Salmonella isolates. Among E. coli, resistance was most frequently observed to ampicillin (44.5%) followed by cefazolin (33.3%), ciprofloxacin (29.6%), ampicillin/sulbactam (26%), and ceftriaxone (11.1%). The highest resistance levels in Salmonella spp. isolates were against cefazolin (7.7%) and piperacillin/tazobactam (7.7%). Conclusions. This is the first study from Colombia reporting on the prevalence and antimicrobial resistance of E. coli and Salmonella spp. in animal feed samples. Its results establish a baseline over a wide geographical distribution in Colombia. It highlights the need to integrate antimicrobial resistance surveillance in animal feed due to the emergence of resistant bacteria in this important stage of the supply chain.

RESUMEN Objetivo. Determinar la prevalencia y resistencia a los antimicrobianos de Escherichia coli y Salmonella spp. en muestras de piensos para animales tomadas entre el 2018 y el 2021 en Colombia. Métodos. Se trata de un estudio transversal realizado en el laboratorio a partir de los datos regulares del programa de inspección, vigilancia y control de alimentos para animales del Instituto Colombiano Agropecuario. Se procesaron muestras de alimentos utilizados en la cría de cerdos, aves de corral, cánidos, félidos, lepóridos, peces y equinos con el fin de detectar E. coli y Salmonella spp. por medio de métodos de enriquecimiento y cultivo selectivo. Se analizó la sensibilidad a los antimicrobianos de las cepas aisladas mediante microdilución automatizada. Resultados. De 1748 muestras de alimentos analizadas, 83 (4,7%) resultaron positivas para E. coli y 66 (3,8%) para Salmonella spp. La presencia de E. coli y Salmonella spp. fue mayor en los alimentos para aves de corral (6,4% y 5,5%) y cerdos (6,1% y 4,3%). Se realizaron pruebas de resistencia a los antimicrobianos en 27 (33%) cepas de E. coli y 26 (39%) de Salmonella. En las cepas de E. coli, se observó una mayor resistencia a la ampicilina (44,5%), seguida de la resistencia a la cefazolina (33,3%), la ciprofloxacina (29,6%), la ampicilina/sulbactam (26%) y la ceftriaxona (11,1%). En el caso de las cepas de Salmonella spp., los niveles de resistencia más elevados fueron para la cefazolina (7,7%) y piperacilina/tazobactam (7,7%). Conclusiones. Este es el primer estudio realizado en Colombia en el que se informa sobre la prevalencia y la resistencia a los antimicrobianos de E. coli y Salmonella spp. en muestras de alimentos para animales. Sus resultados establecen una línea de base para una zona geográfica mucho mayor dentro de Colombia. Se subraya la necesidad de integrar la vigilancia de la resistencia a los antimicrobianos en los alimentos para animales debido a la aparición de bacterias resistentes en esta importante etapa de la cadena de suministro.

RESUMO Objetivo. Determinar a prevalência e a resistência a antimicrobianos de Escherichia coli e Salmonela spp. em amostras de ração animal coletadas entre 2018 e 2021 na Colômbia. Métodos. Estudo transversal de base laboratorial, usando dados de rotina do programa de inspeção, vigilância e controle de ração animal do Instituto Colombiano de Agricultura. Amostras de ração animal para as espécies suína, avícola, canina, felina, leporina, piscina e equina foram processadas para detecção de E. coli e Salmonella spp., usando métodos de enriquecimento e cultura seletiva. Os isolados foram testados quanto à suscetibilidade a antimicrobianos usando um método automatizado de microdiluição. Resultados. Das 1.748 amostras de ração animal analisadas, 83 (4,7%) foram positivas para E. coli e 66 (3,8%) para Salmonella spp. A presença de E. coli e Salmonella spp. foi maior em rações para aves (6,4% e 5,5%) e suínos (6,1% e 4,3%). O teste de resistência a antimicrobianos foi realizado em 27 (33%) isolados de E. coli e 26 (39%) isolados de Salmonella. Em E. coli, a resistência observada com maior frequência foi à ampicilina (44,5%), seguida da cefazolina (33,3%), ciprofloxacino (29,6%), ampicilina/sulbactam (26%) e ceftriaxona (11,1%). Os maiores níveis de resistência em isolados de Salmonella spp. foram contra cefazolina (7,7%) e piperacilina/tazobactam (7,7%). Conclusões. Este é o primeiro estudo da Colômbia a notificar a prevalência e resistência a antimicrobianos de E. coli e Salmonella spp. em amostras de ração animal. Os resultados estabelecem uma linha de base com ampla distribuição geográfica na Colômbia. Destaca-se a necessidade de integrar a vigilância da resistência a antimicrobianos na ração animal, devido ao surgimento de bactérias resistentes nesta importante etapa da cadeia de abastecimento.

Trajetórias e determinantes do alto risco cardiovascular de 30 anos entre participantes de uma coorte brasileira (Estudo CUME) / Trajectories and determinants of 30-year high cardiovascular risk among participants in a Brazilian cohort (CUME Study)

Introdução: As doenças cardiovasculares são o principal problema de saúde pública em todo o mundo. Portanto, a avaliação do risco cardiovascular, com a identificação de seus fatores de risco e de proteção e de suas trajetórias ao longo do tempo são importantes para a proposição, a consolidação e a implementação de medidas de prevenção da ocorrência de doenças cardiovasculares. Objetivo geral: Analisar a trajetória e os determinantes do alto risco cardiovascular de 30 anos em participantes da Coorte de Universidades Mineiras (Estudo CUME). Métodos: Inicialmente, foi realizada uma revisão integrativa da literatura e, em seguida, dois estudos de coorte prospectiva. A) Artigo 1 ­ revisão integrativa da literatura sobre a estimação do alto risco cardiovascular e seus fatores associados, realizada nas bases Medical Literature Analysis and Retrievel System Online, Web of Science, Excerpta Medica Database, Cumulative Index to Nursing and Allied Health Literature e no portal Biblioteca Virtual de Saúde; B) Artigo 2 ­ Coorte aberta prospectiva desenvolvida com 2.854 participantes do Estudo CUME, que é uma pesquisa multicêntrica conduzida com egressos de sete instituições públicas federais de ensino superior do Estado de Minas Gerais desde 2016. A incidência do alto risco cardiovascular de 30 anos foi calculada usando o escore de Framingham e seus determinantes foram estimados usando análise multivariada hierárquica pela técnica de regressão de Cox; C) Artigo 3 ­ Estudo prospectivo fechado desenvolvido com 1.286 participantes da CUME, que responderam ao questionário da linha de base em 2016, aos questionários de seguimento de dois anos (2018) e de quatro anos (2020). O risco cardiovascular foi avaliado com o escore de Framingham de 30 anos. A identificação das trajetórias do risco cardiovascular foi realizada com a técnica de modelagem de crescimento de classe latente com o uso do modelo normal censurado. A análise dos fatores independentemente associados a cada uma das trajetórias foi conduzida com a técnica de regressão logística multinominal. Resultados: Artigo 1 ­ foram selecionados 13 artigos com um ou mais fatores associados ao alto risco cardiovascular, segundo o escore de Framingham de 10 anos. Nenhum artigo investigou os fatores associados ao alto risco cardiovascular de 30 anos. Artigo 2 ­ após média de 2,62 anos de seguimento, a incidência do alto risco cardiovascular de 30 anos foi 8,1 casos/1.000 pessoas-ano no sexo feminino e 20,2 casos/1.000 pessoas-ano no sexo masculino. Sexo masculino (Hazard Ratio ­ HR: 2,34; IC 95%: 1,58 - 3,46), trabalhar (HR: 2,13; IC 95%: 1,13 - 3,99), alto consumo de alimentos processados (HR: 2,44; 95% CI: 1,21 - 4,90) e ser ativo fisicamente (HR: 0,63; IC 95%: 0,41 - 0,98) se associaram independentemente ao alto risco cardiovascular de 30 anos; Artigo 3 - Três trajetórias de risco cardiovascular de 30 anos foram identificadas: Baixo-Baixo (68,3%), Médio-Médio (26,2%) e Alto-Alto (5,5%). Ao longo do tempo, o risco cardiovascular apresentou discreto aumento para a trajetória Baixo-Baixo (2,9%), moderado aumento para a trajetória Médio-Médio (7,6%) e elevado aumento para a trajetória Alto-Alto (13%). O sexo masculino, viver em união estável, ter consumos moderado e alto de alimentos ultraprocessados se associaram positivamente às trajetórias de risco cardiovascular Médio-Médio e Alto-Alto. Ainda, ter formação profissional fora da área da saúde e estar trabalhando se associaram positivamente à trajetória de risco cardiovascular Médio-Médio, enquanto ser ativo fisicamente se associou negativamente à trajetória de risco cardiovascular Alto-Alto. Conclusão: Poucos estudos foram conduzidos para avaliar o alto risco cardiovascular de 30 anos, sendo que em nenhum deles foram estimados fatores associados ao desfecho. Nossos achados científicos indicaram que praticar atividade física reduz a incidência do alto risco cardiovascular de 30 anos. Homens, pessoas que trabalham e com consumo elevado de alimentos processados devem ser monitorados com maior cautela, pois apresentaram maior susceptibilidade de ocorrência do alto risco cardiovascular de 30 anos. Adultos jovens e com melhor situação socioeconômica possuem uma trajetória de baixo risco cardiovascular de 30 anos, entretanto, há uma tendência de piora desta trajetória ao longo do tempo devido aos maus hábitos de vida. Dessa forma, é essencial a implementação de estratégias de prevenção para evitar o adoecimento cardiovascular.

Introduction: Cardiovascular diseases are the main public health problem worldwide. Therefore, the assessment of cardiovascular risk, with the identification of its risk and protection factors and their trajectories over time, are important for proposing, consolidating and implementing measures to prevent the occurrence of cardiovascular diseases. General objective: To analyze the 30-year trajectory and determinants of high cardiovascular risk in participants of the Cohort of Universities of Minas Gerais (CUME Study). Methods: Initially, an integrative literature review was performed, followed by two prospective cohort studies. A) Article 1 ­ integrative review of the literature on the estimation of high cardiovascular risk and its associated factors, carried out in the databases Medical Literature Analysis and Retrievel System Online, Web of Science, Excerpta Medica Database, Cumulative Index to Nursing and Allied Health Literature and the Virtual Health Library portal; B) Article 2 ­ Prospective open cohort developed with 2,854 participants of the CUME Study, which is a multicenter research conducted with graduates from seven federal public institutions of higher education in the State of Minas Gerais since 2016. The incidence of high cardiovascular risk at 30 years was calculated using the Framingham score and its determinants were estimated using hierarchical multivariate analysis by the Cox regression technique; C) Article 3 ­ Prospective closed study developed with 1,286 participants from CUME, who answered the baseline questionnaire in 2016, the two-year follow-up questionnaire in 2018 and the four-year follow-up questionnaire in 2020. The risk Cardiovascular was assessed using the 30-year Framingham score. The identification of cardiovascular risk trajectories was performed using the latent class growth modeling technique using the normal censored model. The analysis of the factors independently associated with each of the trajectories was conducted using the multinomial logistic regression technique. Results: Article 1 ­ 13 articles were selected with one or more factors associated with high cardiovascular risk, according to the Framingham score over 10 years. No article investigated the factors associated with 30-year high cardiovascular risk. Article 2 ­ After an average of 2.62 years of follow-up, the incidence of high cardiovascular risk at 30 years was 8.1 cases/1,000 person-years in females and 20.2 cases/1,000 person-years in males. Male sex (Hazard Ratio ­ HR: 2.34; 95% CI: 1.58 - 3.46), work (HR: 2.13; 95% CI: 1.13 - 3.99), high food intake processed foods (HR: 2.44; 95% CI: 1.21 - 4.90) and being physically active (HR: 0.63; 95% CI: 0.41 - 0.98) were independently associated with high cardiovascular risk 30 years old; Article 3 - Three 30-year cardiovascular risk trajectories were identified: Low-Low (68.3%), Medium-Medium (26.2%) and High-High (5.5%). Over time, cardiovascular risk showed a slight increase for the Low-Low trajectory (2.9%), a moderate increase for the Medium-Medium trajectory (7.6%) and a high increase for the High-High trajectory (13%). Being male, living in a stable relationship, having moderate and high consumption of ultra-processed foods were positively associated with Medium-Medium and High-High cardiovascular risk trajectories. Also, having professional training outside the health area and being working were positively associated with the Medium-Medium cardiovascular risk trajectory, while being physically active was negatively associated with the High-High cardiovascular risk trajectory. Conclusion: Few studies were conducted to assess the 30-year high cardiovascular risk, and none of them estimated factors associated with the outcome. Our scientific findings indicated that practicing physical activity reduces the incidence of 30-year high cardiovascular risk. Men, people who work and with a high consumption of processed foods should be monitored with greater caution, as they were more susceptible to the occurrence of the high cardiovascular risk of 30 years. Young adults with better socioeconomic status have a 30-year trajectory of low cardiovascular risk, however, there is a tendency for this trajectory to worsen over time due to bad lifestyle habits. Thus, it is essential to implement prevention strategies to avoid cardiovascular disease.

Design for online monitoring of occupational hazard factors based on internet of things / 中华劳动卫生职业病杂志

At present, there are disadvantages with the detection for occupational hazard factors, such as insufficient monitoring data, poor timeliness, weak representativeness, long detection cycles, and inability to continuously monitor. Taking advantages of internet of things technology, an online monitoring platform for occupational hazard factors has been designed. The platform collects the concentration (intensity) of hazard factors through sensors, transmits the occupational hazards data collected online in realtime. The online monitoring cloud center for occupational hazard factors processes and analyzes online monitoring data in realtime, stores the hazard factors data to form database management, and provides user application services to form an intelligent online monitoring service model for occupational hazard factors. Based on the online monitoring platform of occupational hazard factors, multi-level government health supervision departments and employers can grasp the status of hazard factors in real time, which is conducive to improving the level of occupational hazard supervision.

Study of Lung Function Disorders of Headstone and Stone Mortar Crafters and Factors That Affect Them

@#Introduction: Dust is one of the chemical substances that cause occupational disease, especially among stone crafters. Its deposition for a long period can lead to various health problems, hence, there is a need for early detection. Therefore, this study aims to assess the occurrence of lung function disorder in headstone and stone mortar crafters. Methods: A cross-sectional design was used and the sample population consists of all headstone and stone mortar crafters in Allakuang Village, Sidrap Regency, Indonesia. They were selected using a purposive sampling method, and 33 out of 148 people met the criteria. Subsequently, their lung function was measured once using spirometry as well as FVC and FEV1 parameters. The data obtained were then analyzed using Chi-Square. Results: 18 of 33 respondents with lung function disorders. They had a long tenure, a normal working time, bad exercise habits, as well as a normal and overweight nutritional status based on their BMI category. The statistical test results showed that tenure, working time, and exercise habits had an effect on the disease condition with p=0.000. Meanwhile, other factors, such as age and nutritional status had no effect with p-values of 0.981 and 0.14, respectively. Conclusion: Based on the results, the majority of headstone and stone mortar crafters have lung function disorders, and the influential factors include tenure, working time, and exercise habits.

Effects of Calcium Carbide Used as a Fruit-Ripening Agent on Fruit Toxicity

Aims: To provide a comprehensive summary of what has been published about the effects of calcium carbide (CaC2) as a fruit-ripening agent and to determine the necessity or not to develop awareness among government agencies, policymakers, farmers, vendors, and scientists in order to best address different aspects of artificial fruit ripening issues and to provide more profitable solutions for global health preservation. Methodology: Scientific information about the effects of CaC2 published elsewhere was reviewed. Online databases of scientific journals which include Wiley Online Library, Science Direct, PubMed, CAS, CABI, AJOL and Google Scholar were used to select valuable studies. Results: Most studies have reported the hazardous potential of CaC2 as a ripening agent. Among other potential effects that were discovered through laboratory investigations are the adulteration of nutritional values of ripened fruits and direct or indirect toxicity in studied living systems such as genotoxicity and cytotoxicity to dividing cells, increase of the cellular oxidative stress, disturbance of the redox balance of the cell, estrogenic disruptions, increase of the white blood cells and Lymphocytes, alteration of hematopoiesis, alteration of sperm cells, a decrease of the fertility rate, weakness of the immune system, etc.). Conclusion: Overall, this review provides comprehensive information on what is known about the effects of CaC2 and showed the necessity to discourage its application as an artificial fruit ripening agent through the establishment of laws and regulations for better control of its use in most developing countries.

Respiratory health of the small scale dairy workers of urban Bhubaneswar, Odisha

Background: Human in close inhabitation with the cattle due to unventilated or inadequately ventilated establishments or inadequate living space, is always at a risk of sustaining infection from the cattle through different modes of disease transmission. This study hints at the increased incidences in respiratory infections among dairy workers in unorganized and small scale dairy farms due to amendable unhygienic practices. Methods: This survey was part of a larger study, conducted after ethics approval. Number of households involved in dairy work surveyed were 60. From every house, two members actively involved in dairy work were chosen and total respondents were 120. The study tool was a semi structured, mixed questionnaire. Results: 67.5% dairy workers self-reported occurrence of respiratory symptoms which included the complaints like cough,breathing difficulty on exertion. None of the dairy workers were vaccinated against any milk borne disease.Conclusion: The housing, civic amenities accessed by them and their awareness are probably the main reasons for wide variety of self perpetuated practices and deviations of standard requirement.Use of protective gear (gloves,caps,masks) should be strictly emphasized and popularized.

Viruela del mono, ¿nueva amenaza epidemiológica? / Monkeypox, a new epidemiological threat?

El virus de la enfermedad viruela símica es poco frecuente, cuyo primer caso se detectó en un niño africano en 1970. Animales que viven en las zonas de la selva de África central y occidental resultan sus portadores naturales. Actualmente, los sistemas de salud de diversos países reportan nuevos casos a nivel mundial, levantando alarmas entre diversos organismos y en la población en general.

The monkeypox disease virus is rare, the first case of it was detected in an African child in 1970. Animals living in the jungle areas of central and western Africa are its natural carriers. Currently, the health systems of various countries report new cases worldwide, raising alarms among various organizations and in the general population.

Safety, immunogenicity & effectiveness of the COVID-19 vaccine among healthcare workers in a tertiary care hospital

Background & objectives: The COVID-19 pandemic has caused significant global morbidity and mortality. As the vaccination was rolled out with prioritization on healthcare workers (HCWs), it was desirable to generate evidence on effectiveness of vaccine in prevailing real-life situation for policy planning. The objective of the study was to evaluate the safety, effectiveness and immunogenicity of COVID-19 vaccination among HCWs in a tertiary care hospital. Methods: This prospective observational study was undertaken on the safety, immunogenicity and effectiveness of the ChAdOx1 nCoV- 19 coronavirus vaccine (Recombinant) during the national vaccine roll out in January-March 2021, in a tertiary care hospital, New Delhi, India. Results: The vaccine was found to be safe, with local pain, fever and headache as the most common adverse events of milder nature which generally lasted for two days. The adverse events following vaccination were lower in the second dose as compared to the first dose. The vaccine was immunogenic, with seropositivity, which was 51 per cent before vaccination, increasing to 77 per cent after single dose and 98 per cent after two doses. Subgroup analysis indicated that those with the past history of COVID-19 attained seropositivity of 98 per cent even with single dose. The incidence of reverse transcription (RT)-PCR positive COVID-19 was significantly lower among vaccinated (11.7%) as compared to unvaccinated (22.2%). Seven cases of moderate COVID-19 needing hospitalization were seen in the unvaccinated and only one such in the vaccinated group. The difference was significant between the fully vaccinated (10.8%) and the partially vaccinated (12.7%). The hazard of COVID-19 infection was higher among male, age >50 yr and clinical role in the hospital. After adjustment for these factors, the hazard of COVID-19 infection among unvaccinated was 2.09 as compared to fully vaccinated. Vaccine effectiveness was 52.2 per cent in HCWs. Interpretation & conclusions: ChAdOx1 nCoV-19 coronavirus vaccine (Recombinant) was safe, immunogenic as well as showed effectiveness against the COVID-19 disease (CTRI/2021/01/030582).