Risco ambiental provocado por resíduos de medicamentos na cidade do Rio de Janeiro, Brasil, durante a pandemia por SARS-Cov19 / Environmental risk caused by drug waste in the city of Rio de Janeiro, Brazil, during the SARS-Cov19 pandemic

Resumo Foi avaliada a relação entre a distribuição de medicamentos usados na pandemia por SARS-COV-19 no município do Rio de Janeiro e o nível de risco ambiental estimado provocado por seus resíduos. Foi coletada a quantidade de medicamentos distribuídos pelas unidades de atenção primária à saúde (APS) entre 2019 e 2021. O quociente de risco (QR) correspondeu à razão entre a concentração ambiental preditiva estimada (PECest), obtida pelo consumo e excreção de cada fármaco, e a sua concentração preditiva não efetiva (PNEC). Os PECest da azitromicina e da ivermectina aumentaram entre 2019 e 2020, tendo uma queda em 2021 provavelmente devido ao desabastecimento. Já o da dexclorfeniramina (DEX) e da fluoxetina (FLU) tiveram uma queda, retornando o crescimento em 2021. Enquanto o PECest do diazepam (DIA) aumentou ao longo desses três anos, o etinilestradiol (EE2) diminuiu, possivelmente pela priorização da APS no tratamento da COVID-19. Os maiores QR foram de FLU, EE2 e AZI. O padrão de consumo desses medicamentos não refletiu seu risco ambiental, pois os mais consumidos possuem baixa toxicidade. Vale destacar que alguns dados podem estar subestimados devido ao incentivo que foi dado durante a pandemia para o consumo de determinados grupos de fármacos.

Abstract The relationship between the distribution of medicines used in the Pandemic by SARS-COV-19 in the municipality of Rio de Janeiro and the estimated level of environmental risk caused by their residues was evaluated. The amount of medicines distributed by primary health care (PHC) units between 2019 and 2021 were collected. The risk quotient (RQ) corresponded to the ratio between the estimated predictive environmental concentration (PECest) obtained by the consumption and excretion of each drug and its non-effective predictive concentration (PNEC). Between 2019 and 2020, the PECest of azithromycin (AZI) and ivermectin (IVE) increased between 2019 and 2020, with a decrease in 2021 probably due to shortages. Dexchlorpheniramine (DEX) and fluoxetine (FLU) fell, returning to growth in 2021. While the PECest of diazepam (DIA) increased over these 3 years, ethinylestradiol (EE2) decreased possibly due to the prioritization of PHC in the treatment of COVID-19. The largest QR were from FLU, EE2 and AZI. The consumption pattern of these drugs did not reflect their environmental risk because the most consumed ones have low toxicity. It is worth noting that some data may be underestimated due to the incentive given during the pandemic to the consumption of certain groups of drugs.

Evaluation of Efficacy and Prognosis Analysis of Stage III-IV SMARCA4-deficient Non-small Cell Lung Cancer Treated by PD-1 Immune Checkpoint Inhibitors plus Chemotherapy and Chemotherapy / 中国肺癌杂志

BACKGROUND@#The SMARCA4 mutation has been shown to account for at least 10% of non-small cell lung cancer (NSCLC). In the present, conventional radiotherapy and targeted therapy are difficult to improve outcomes due to the highly aggressive and refractory nature of SMARCA4-deficient NSCLC (SMARCA4-DNSCLC) and the absence of sensitive site mutations for targeted drug therapy, and chemotherapy combined with or without immunotherapy is the main treatment. Effective SMARCA4-DNSCLC therapeutic options, however, are still debatable. Our study aimed to investigate the efficacy and prognosis of programmed cell death 1 (PD-1) immune checkpoint inhibitors (ICIs) in combination with chemotherapy and chemotherapy in patients with stage III-IV SMARCA4-DNSCLC.@*METHODS@#46 patients with stage III-IV SMARCA4-DNSCLC were divided into two groups based on their treatment regimen: the chemotherapy group and the PD-1 ICIs plus chemotherapy group, and their clinical data were retrospectively analyzed. Efficacy assessment and survival analysis were performed in both groups, and the influencing factors for prognosis were explored for patients with SMARCA4-DNSCLC.@*RESULTS@#Male smokers are more likely to develop SMARCA4-DNSCLC. There was no significant difference in the objective response rate (76.5% vs 69.0%, P=0.836) between chemotherapy and the PD-1 ICIs plus chemotherapy or the disease control rate (100.0% vs 89.7%, P=0.286). The one-year overall survival rate in the group with PD-1 ICIs plus chemotherapy was 62.7%, and that of the chemotherapy group was 46.0%. The difference in median progression-free survival (PFS) between the PD-1 ICIs plus chemotherapy group and the chemotherapy group was statistically significant (9.3 mon vs 6.1 mon, P=0.048). The results of Cox regression analysis showed that treatment regimen and smoking history were independent influencing factors of PFS in patients with stage III-IV SMARCA4-DNSCLC, and family history was an individual influencing factor of overall survival in patients with stage III-IV SMARCA4-DNSCLC.@*CONCLUSIONS@#Treatment regimen may be a prognostic factor for patients with SMARCA4-DNSCLC, and patients with PD-1 ICIs plus chemotherapy may have a better prognosis.

Resiliência associada ao enfrentamento da dor musculoesquelética em profissionais da enfermagem / Resilience is associated with coping with musculoskeletal pain in nursing professionals

A dor musculoesquelética é um problema frequente nos profissionais da enfermagem e várias medidas vêm sendo pesquisadas a fim de diminui-la, entretanto, poucos estudos abordam a influência do aumento da resiliência desses profissionais no controle da sua dor. Desta maneira, o objetivo deste trabalho foi identificar associação entre resiliência e dor musculoesquelética, em diferentes regiões anatômicas, referida por profissionais de enfermagem. Trata-se de estudo observacional transversal com 321 profissionais de enfermagem. Foram utilizados questionário sociodemográfico e laboral, questionário nórdico de sintomas osteomusculares, escala analógica da dor e escala de resiliência. Para análise foi utilizado estatística descritiva e analítica, através dos testes Mann-Whitney U e Kruskal Wallis. Foi verificada relação da dor com características sociodemográficas, laborais e resiliência, analisadas. 261 (81,3%) afirmaram ter apresentado dor musculoesquelética no último ano e as regiões mais acometidas foram partes superior e inferior das costas s e ombros. Identificou-se associação entre intensidade da dor e dor musculoesquelética em todas as regiões corporais investigadas (p < 0,05), idade (p = 0,015), categoria profissional (p = 0,032), tempo de atuação na enfermagem (p = 0,003) e turno de trabalho (p = 0,012), e correlação entre resiliência e dor musculoesquelética no pescoço (p = 0,010) e quadril e coxas (p = 0,009). Sendo assim, a elevada resiliência está associada ao melhor controle da dor musculoesquelética, em especial, na região do pescoço, de enfermeiros.

Musculoskeletal pain is a frequent problem in nursing professionals, and several treatments have been researched to reduce it; however, few studies address the influence of increased resilience of these professionals in controlling their pain. Thus, this study aimed to identify an association between resilience and musculoskeletal pain reported by nursing professionals in different anatomical regions. This is a cross-sectional observational study with 321 nursing professionals. A sociodemographic and work questionnaire, a Nordic musculoskeletal symptoms questionnaire, an analog pain scale, and a resilience scale were used. Descriptive and analytical statistics were used for analysis, using the Mann-Whitney U and Kruskal Wallis tests. The relationships between pain and sociodemographic, work, and resilience characteristics were analyzed. 261 (81.3%) reported having had musculoskeletal pain in the last year, and the most affected regions were the upper and lower backs and shoulders. An association was identified between pain intensity and musculoskeletal pain in all investigated body regions (p < 0.05), age (p = 0.015), professional category (p = 0.032), length of experience in nursing (p = 0.003), and work shift (p = 0.012). A correlation was also observed between resilience and musculoskeletal pain in the neck (p = 0.010) and hip and thighs (p = 0.009). Thus, high resilience is associated with better control of musculoskeletal pain among nurses, especially in the neck region.

Exploring occupational hazards and protective strategies in power generation enterprises / 中国职业医学

Currently, power generation in China is dominated by thermal power, wind power, nuclear power, and hydropower enterprises. The power source mainly comes from thermal power generation. The occupational hazards in thermal power station are noise, high temperature, power frequency electric fields, dust, and chemical toxins and so on, with noise and dust (silica and coal dust) being the primary factors. The occupational hazards in wind power station are noise, power frequency electric fields, high temperature, low temperature, and chemical toxins (sulfur hexafluoride, toluene, styrene, etc.), with noise and power frequency electric fields being the major concerns. The occupational radiation hazards in nuclear power station are gamma rays, beta rays, X-rays, neutrons, alpha rays, and radioactive aerosols. There is special attention in radiation protection but not enough protection in non-radioactive hazards such as noise, high temperature, and ammonia. The occupational hazards in hydropower station are noise, power frequency electric fields, vibration, radon and its de-composites, and chemical toxins, with noise and power frequency electric fields being the primary hazards. Different categories of power generation enterprises should identify key hazards and work site for occupational disease prevention and control based on the features of occupational hazards. Improving occupational health management and protection levels are essential measures.

Survival analysis on patients with occupational pneumoconiosis in Guangdong Province from 1980 to 2019 / 中国职业医学

Objective: To study the survival time and its risk factors of patients with occupational pneumoconiosis. Methods: A total of 11 011 newly diagnosed occupational pneumoconiosis patients in Guangdong Province from 1980 to 2019 were selected as study subjects. The life table method was used for survival analysis. The influencing factors of survival time of occupational pneumoconiosis patients were analyzed using the WilCoxon (Gehan) test and Cox proportional hazards regression model. Results: The median survival time of pneumoconiosis patients was 26.0 years. The median survival period of stage Ⅰpatients was 3.5 years longer than that of stage Ⅱ patients and 10.1 years longer than that of stage Ⅲ patients. The median survival time of patients with an initial diagnosis age under 40.0 years old was 34.8 years longer than that of patients with an initial diagnosis age over 60.0 years old. The median survival time of patients with dust exposure duration under 25.0 years old was 13.6 years longer than patients with dust exposure duration age over 45.0 years old. The results of the Cox proportional hazards regression model showed that the initial diagnosis stage, initial diagnosis age, dust exposure duration, and medical insurance were risk factors of the survival time of occupational pneumoconiosis patients (all P<0.01). The risk of reduced survival time for patients with stage Ⅱ and stage Ⅲ as the initial diagnosis stage was 1.15 and 2.04 times higher, respectively, compared with stage Ⅰ patients (both P<0.01). The risk of reduced survival time for patients without medical insurance was 60.22 times higher than those with medical insurance (P<0.01). Conclusion: The risk factors of the survival time of occupational pneumoconiosis patients in Guangdong Province are initial diagnosis stage, initial diagnosis age, the dust exposure age, and medical insurance. Earlier detection, earlier diagnosis, and improvement of medical insurance coverage for patients can effectively improve the survival time of occupational pneumoconiosis patients.

Analysis of the regular monitoring of occupational hazards in Guangdong Province in 2022 / 中国职业医学

Objective To analyze the overall situation of regular monitoring of occupational hazards in enterprises in Guangdong Province in 2022. Methods Analysis and quality sampling from enterprises were conducted on the occupational hazard regular monitoring reports submitted by various occupational health institutions through the Guangdong Province Occupational Health Quality Control Platform for the year 2022. Results In 2022, a total of 40 129 enterprises in Guangdong Province conducted regular monitoring of occupational hazards, accounting for 5.9%. More than 4.85 million workers were enrolled, of which more than 1.99 million workers were exposed to occupational hazards, with an incidence of 41.1%. The incidence of exposure to chemicals, dust, and noise were 18.2%, 11.9%, and 23.5%, respectively. The incidence of exceeding national standard for chemical substances, dust and noise in enterprises were 2.7%, 3.3%, and 42.7%, respectively. The incidence of exceeding national standard for all occupational hazards increased with the scale of enterprises from micro, small, medium to large enterprises (29.1% vs 46.7% vs 61.3% vs 65.4%, all P<0.05). The top three key industries, with more enterprises exceeding national standard, were metal furniture manufacturing, wooden furniture manufacturing, and other metal daily necessities manufacturing. The concentration of 97 chemical hazardous agents such as silica dust and benzene in work site exceeded the national standard, but less than 1.0% chemical hazardous agents exceeded national standard in most of the chemical-exposed work site. The incidence of noise exceeding national standard was 45.4%, while the incidence of silica dust exceeding national standard was 17.3%. Conclusion The percentage of regular monitoring of occupational hazards in enterprises in Guangdong Province is relatively low. The main occupational hazard that exceeds the national standard was noise, indicating the need for special attention on noise protection in workplace.

Analysis of the clinical characteristics of 69 cases of occupational melanosis / 中国职业医学

Objective To summarize the clinical characteristics of patients with occupational melanosis. Methods Diagnostic data of 69 patients with occupational melanosis was analyzed using retrospective analysis. Results The main occupational hazards for the 69 patients with occupational melanosis were coal tar, petroleum and its fractionated products, pigments and dyes and their intermediates, rubber additives and rubber products. The median length of occupational exposure and disease latency were 8.0 and 6.0 years, respectively, with a highly positive correlation between them (Spearman correlation coefficients=0.962, P<0.01). Skin lesions were mainly found on exposed areas such as the face-to-neck and limbs, prevalence of 94.2% and 75.4% respectively. And 78.3% of patients had skin lesion on more than two sites. The lesions were mostly in the form of irregular flakes (59.4%), with a gray-black color (44.9%). About 43.5% of patients experienced skin itching. Complete blood count, liver function, and kidney function were all within normal ranges. Skin biopsy results showed that epidermal hyperkeratosis, thinning of the spinous layer, liquefaction degeneration of basal cells, increased superficial dermal melanocytes, and infiltration of lymphocytes, histiocytes, and melanocytes around the blood vessels. Reflectance confocal microscopy (RCM) detection showed focal liquefaction degeneration of basal cells in the lesions, with a significant infiltration of melanocytes and inflammatory cells in the dermal papillae and superficial layers. Conclusion The primary target organ of occupational melanocytes is the skin, and no damage to other organs was identified thus far. Results from skin biopsies and RCM examinations can be used for differential diagnosis.

Analysis of radioactive occupational hazard and protective measures in iodine-125 seed source manufacturer / 中国职业医学

Objective To analyze the occupational hazards and protective measures for personnel in an iodine-125(125I) seed source production company. Methods In 2022, a 125I seed source production enterprise in Guangdong Province was selected as the research subject. The occupational hazards in the workplace of the research subject was identified using the system engineering analysis method. The FLUAK program based on Monte Carlo method was used to simulate the blocking protection of the production of the 125I seed source, and to estimate the dose of internal and external irradiation of seed source that affected workers. Results The main occupational radiation hazards in the seed production were non-sealed radioactive materials, including external irradiation from X-ray and γ ray and internal irradiation from aerosols formed by iodine volatilization. Estimated maximum dose equivalent rate around the chest and eye lens for workers were 0.52 and 0.02 μSv/h, respectively. The expected annual effective dose for workers in each work site was 0.035 mSv, and the expected annual equivalent dose to the eye lens for all workers in various work sites was 0.001 mSv. The maximum annual equivalent dose of operator's hand was 80.620 mSv. The maximum dose of internal irradiation to the worker was 18.750 mSv, which was caused by the volatilization of nuclides. Conclusion With effective protection measures for internal and external irradiation in place, the annual exposure doses for seed production personnel and operator’s hand are below the national limits. Adequate measures should be taken on hand protection.

Health hazards and protective measures of medical radiation / 中国辐射卫生

Ionizing radiation has been widely used for diagnosis and treatment of diseases. Nevertheless, radiation exposure may increase the risk of skin, cardiovascular system, hematological system, and metabolic disorders, and even the risk of cancers. Rational use of ionizing radiation improves prognosis and facilitates biomedical research, while misuse or overuse may result in serious consequences. Scientific and objective assessment of health hazards of medical radiation and establishment of effective protective interventions are of great importance to control the risk of radiation exposure. This article reviews the health hazards and protective measures of medical radiation.

Research progress of occupational hazards in plywood manufacturing / 中华劳动卫生职业病杂志

Occupational disease hazards in plywood manufacturing mainly include wood dust, formaldehyde, phenol, ammonia, noise, terpene, microorganisms, etc. The exposure is complex with multiple factors accompanied or coexisted. In the production process, these factors are exceeded, and mass occupational disease hazard events occurred among workers. Exposure to wood dust, formaldehyde, terpene, etc., put workers at increased risk of cancer. This article provides a review of this issue in order to provide a scientific basis for the prevention and control of occupational disease hazards in plywood manufacturing.

Analysis of dust and noise exposure levels in the mining industry from the national surveillance program in 2019 / 中华劳动卫生职业病杂志

Objective: To understand the exposure level of dust and noise in the mining industry and provide data support for revising policy for the prevention and control of occupational diseases. Methods: In May 2022, Data was collected through the National Surveillance Program for Occupational Hazards in the Workplace. Descriptive analysis was conducted for dust and noise levels by industry type and enterprise size from 7, 679 enterprises in the mining industry among 29 provincial regions nationwide. Results: The enterprises in the mining industry included in the National Surveillance Program for Occupational Hazards in the Workplace are mainly small and micro, accounting for 47.97% (3684/7679) and 30.00% (230/7679) respectively. The industry is mainly compred of employers in the non-metallic ming and beneficiation industry, accounting for 50.25% (3859/7679). Among the enterprises with silica dust, coal dust, and noise hazards, the proportion of enterprises where total dust concentration and noise intensity exceed the standard is higher than 50%. 30% of the posts are with an exposure level of silica dust, coal dust, and noise that exceeds the standard. The exceedance rate and the median of the time-weighted average concentration of total coal dust among large and medium-sized enterprises are higher than those among small and micro-sized enterprises (P<0.05) . Conclusion: The dust and noise hazards in the mining industry are lower than in the past in China, but more than 25% of workers are still at a high risk of occupational pneumoconiosis and noise deafness. Therefore, intervention and surveillance strategies should be strengthened in the future.

Results of occupational health examination for gas station workers / 公共卫生与预防医学

Objective To understand the occupational health status of gas station workers, to analyze the characteristics of early health damage, and to provide a reference for the occupational health monitoring of workers in this industry. Methods The gas station workers who underwent occupational health examination in an occupational health examination institution in Tianjin in 2021were selected as the research subjects. The examination results were statistically analyzed. Results A total of 381 gas station workers were included in this study, with a sex ratio of male to female of 1.40:1. The top three tests with abnormal results from high to low were abdominal color Doppler ultrasound (39.63%), urine routine (29.13%), and blood pressure (23.62%). The detected fatty liver accounted for 74.83% of abnormal abdominal color Doppler ultrasound. Analysis of abnormal results of different genders showed that the detection rate of abnormal blood pressure, fatty liver and liver function in males was higher than that in females (χ2=16.40, 25.40, 15.98，P＜0.05), the detection rate of high GGT in males was significantly higher than that in females (χ2=16.04，P＜0.05）. The detection rate of abnormal urine routine in females was higher than that in males (χ2=12.85，P＜0.05), and the positive rate of urine white blood cells and blood in urine were significantly higher I women than those in men (χ2 =16.80, 11.66，P＜0.05). The abnormal detection rate of electrocardiogram of gas station workers increased with age (χ2=28.02，P＜0.05), and the abnormality of high blood pressure showed an increasing trend with age and working years（χ2=25.00, 15.26，P＜0.05). Conclusion The long-term exposure of gas station workers to chemical toxic substances such as organic solvents and benzene series and physical factors such as high temperature in summer and low temperature in winter will have a certain impact on health. It is suggested that employers should reasonably arrange their work systems and carry out occupational health monitoring in a targeted manner.

Establishment and evaluation of a multivariate Cox proportional-hazards prediction model for mortality during short-term hospitalization in patients with liver cirrhosis and sepsis / 临床肝胆病杂志

Objective To establish a Cox proportional-hazards prediction model for mortality during short-term hospitalization in patients with liver cirrhosis and sepsis. Methods A retrospective analysis was performed for the clinical data of 336 patients with liver cirrhosis and sepsis who were admitted to The Third People's Hospital of Kunming from January 2012 to August 2022, and according to whether the patient died during short-term hospitalization, they were divided into death group with 40 patients and survival group with 296 patients. Demographic data, comorbidities, and clinical biochemical parameters were collected and compared between the two groups. The independent-samples t test was used for comparison of normally distributed continuous data between two groups, and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups; the chi-square test was used for comparison of categorical data between two groups. The multivariate Cox analysis was used for screening of variables, then a Cox proportional-hazards prediction model was established, and hazard ratio ( HR ) and its 95% confidence interval [ CI ] were calculated; C-index index was used to evaluate the prediction accuracy of the model. The Cox proportional-hazards prediction model was visualized by a nomogram, and calibration curve was plotted to evaluate the consistency between the prediction results of the model and the actual condition. Results Among the 336 patients, there were 261 male patients (77.7%) and 75 female patients (22.3%), with a mean age of 50.0±10.6 years, and 40 patients died, with a mean hospital stay of 16.8±11.3 days (range 8.2-23.0 days). Compared with the survival group, the death group had a significantly higher proportion of patients with an age of ≥60 years, a history of invasive operation within the past two weeks, gastrointestinal bleeding, hepatic encephalopathy (HE) or hepatorenal syndrome (HRS), a significantly higher Modified Early Warning Score (MEWS) score, and significantly higher levels of prothrombin time (PT), activated partial thromboplastin time, international normalized ratio, D-dimer, CD4/CD8 ratio, lactate, white blood cell count, norepinephrine, total bilirubin, interleukin-6, procalcitonin, high-sensitivity C-reactive protein (hsCRP), blood urea nitrogen, and creatinine (all P < 0.05), as well as significantly lower levels of red blood cell count, hemoglobin, albumin, total cholesterol, low-density lipoprotein, and high-density lipoprotein (all P < 0.05). The multivariate Cox regression analysis showed that age ( HR =2.602, 95% CI : 1.277-5.303, P =0.008), HE ( HR =2.516, 95% CI : 1.258-5.033, P =0.009), HRS ( HR =2.324, 95% CI : 1.010-5.349, P =0.047), hsCRP ( HR =1.008, 95% CI : 1.003-1.013, P =0.004), MEWS score ( HR =1.205, 95% CI : 1.022-1.422, P =0.027), and PT ( HR =1.076, 95% CI : 1.030-1.124, P =0.027) were independent influencing factors for death in patients with liver cirrhosis and sepsis. The model showed a C-index of 0.857 (95% CI : 0.815-0.920), suggesting that the model had relatively high prediction accuracy, and the calibration curve showed good consistency between the predicted risk and the actual risk. Conclusion The Cox proportional-hazards prediction model established for death during short-term hospitalization in patients with liver cirrhosis and sepsis can be used to predict the risk of death during short-term hospitalization in patients with liver cirrhosis and sepsis, thereby guiding clinical medical staff to take targeted intervention measures to avoid or reduce the possibility of death in patients.

Biossegurança e segurança do paciente na COVID-19: percepção dos profissionais de saúde de centro cirúrgico / Biosafety and patient safety in COVID-19: perception of surgical center health professionals / Bioseguridad y seguridad del paciente en COVID-19: percepción de los profesionales de la salud del centro quirúrgico

Objetivo: analisar a percepção dos profissionais de saúde em centro cirúrgico com relação as suas condutas voltadas à biossegurança e à segurança do paciente no contexto da COVID-19. Método: estudo qualitativo realizado por meio de entrevistas semiestruturadas com profissionais de saúde de um centro cirúrgico, no período de março a junho de 2021. Utilizou-se Bardin para análise dos dados. Resultados: participaram 36 profissionais de saúde, contando com técnicos de enfermagem, enfermeiros e médicos. A análise de dados resultou em 2222 unidades de registros e 191 unidades de significação distribuídas nas seguintes categorias: "Conhecimento/importância da temática"; "Biossegurança e segurança do paciente na prática profissional"; "Percepção dos profissionais em relação as suas condutas voltadas à biossegurança e segurança do paciente" Conclusão: evidenciou-se o fortalecimento das medidas de biossegurança e segurança do paciente decorrente à preocupação da contaminação por COVID-19.

Objective: to analyze the perception of health professionals in the operating room regarding their biosafety and patient safety behaviors in the context of COVID-19. Method: qualitative study carried out through semi-structured interviews with health professionals from a surgical center, from March to June 2021. Bardin was used for data analysis. Results: 36 health professionals participated, including nursing technicians, nurses and doctors.Data analysis resulted in 2222 units of records and 191 units of meaning distributed in the following categories: "Knowledge/importance of the theme"; "Biosafety and patient safety in professional practice"; "Perception of professionals in relation to their conduct aimed at biosafety and patient safety" Conclusion: the strengthening of biosafety and patient safety measures was evidenced due to the concern of contamination by COVID-19.

Objetivo: analizar la percepción de los profesionales de la salud en el quirófano sobre sus comportamientos de bioseguridad y seguridad del paciente en el contexto de la COVID-19. Método: estudio cualitativo realizado a través de entrevistas semiestructuradas con profesionales de la salud de un centro quirúrgico, de marzo a junio de 2021. Se utilizó Bardin para el análisis de datos. Resultados:participaron 36 profesionales de la salud, entre técnicos de enfermería, enfermeros y médicos.El análisis de datos resultó en 2222 unidades de registro y 191 unidades de significado distribuidas en las siguientes categorías: "Conocimiento/importancia del tema"; "Bioseguridad y seguridad del paciente en la práctica profesional"; "Percepción de los profesionales en relación a su conducta encaminada a la bioseguridad y seguridad del paciente" Conclusión: se evidenció el fortalecimiento de las medidas de bioseguridad y seguridad del paciente ante la preocupación por la contaminación por COVID-19.

Health and safety incidents at a power utility in the Eastern Cape province of South Africa

Background: Many high-risk and construction-related activities are performed in the course of distributing electricity throughout South Africa, including working at heights, driving, operating electrical networks, excavation work, and maintenance of electrical structures. South Africa has one power utility that provides electricity to the entire country. Different sectors of the utility are distributed throughout the nine provinces, with eight sectors in the Eastern Cape province. Objective: We sought to compare health and safety incidents, and their causes, between the sectors in the Eastern Cape province. Methods: Incident data from 2015 to 2019 were extracted from the power utility's Systems, Applications and Products in Data Processing of Environmental Health and Safety (SAP EH&S) database. The most common health and safety incidents and their reported causes are compared across sectors and described as counts and frequencies. Results: There were 614 health and safety incidents recorded in the study period with motor vehicle accidents being the most common overall (n = 482, 78.5%). Incidents related to damage to equipment (n = 48, 7.8%), operating errors (n = 16, 2.8%), falls (n = 15, 2.4%), hand injuries (n = 13, 2.1%), and insect/animal bites (n = 13, 2.1%) were also recorded. Workers ignoring safety rules was the most common reported cause of these health and safety incidents (n = 449, 73.1%). Conclusion: Motor vehicle accidents, damage to property, operating errors, falls, and hand injuries were frequently reported in the energy utility sectors in the Eastern Cape province. The most common recorded cause was workers ignoring health and safety rules. Training workers on the importance of reporting incidents, including near misses, can potentially reduce the frequency of health and safety incidents.

Hairdressers in Johannesburg: knowledge, attitudes and practices regarding occupational health

Introduction: Hairdressers are exposed to hazardous chemicals in haircare products, which can cause adverse respiratory, skin, and reproductive effects. The incidence of these effects can be reduced with good occupational health and safety (OHS) knowledge, attitudes, and practices (KAP). Objective: The objective of the study was to assess Johannesburg hairdressers' knowledge, attitudes, and practices towards occupational health and safety. Methods: Three hundred and eighty-three hairdressers were recruited into this crosssectional study. They were categorised into employees/wage earners (earning a salary or wage, n = 151), or business owners (self-employed, n = 232). Data were collected using an interviewer-administered questionnaire. The data were analysed using Statistical Package for Social Sciences (SPSS) version 26. Frequency tables were generated and chi-square tests were used to test differences between KAP amongst business owners and wage earners. Results: Most of the study participant were female (n = 237, 61.9%). A higher proportion of business owners than wage earners knew that hairdressing was hazardous to their health, in general (n = 44, 29.1% and n = 120, 51.7%, respectively), and with regard to specific health risks such as asthma, cancer, and skin diseases. However, more of the wage earners than the business owners had good attitudes towards the wearing of personal protective equipment (PPE) such as gloves, (n = 143, 94.7% and n = 210, 90.5%, respectively). Overall, wage earners practised better OHS than business owners, e.g. 67.5% (n = 102) and 55.2% (n = 128) reported that they wore gloves, respectively. Conclusion: Wage earners had poorer OHS knowledge than those who owned or operated hairdressing salons. Both had good attitudes towards OHS, but self-employed hairdressers had poorer OHS practices. Training, including workshops and seminars, is needed to improve KAP regarding OHS amongst all hairdressers, regardless of their employment status.

COMPARISON OF COX PROPORTIONAL HAZARD MODEL AND ACCELERATED FAILURE TIME (AFT) MODELS: AN APPLICATION TO UNDER-FIVE MORTALITY IN UTTAR PRADESH

The statistical field of survival analysis focuses on the examination of time-to-event data. The proportional hazards (PH) model is the most widely used in multivariate survival analysis to examine the effects of various factors on survival time. The statistics, however, do not always support the PH models assumption of constant hazards. The power of the associated statistical tests is reduced when the PH assumption is broken, which leads to incorrect interpretation of the estimation results. The accelerated failure time (AFT) models, on the other hand, do not, like the PH model, assume constant hazards in the survival data. Additionally, the AFT models can be employed in place of the PH model if the constant hazards assumption violated. This study set out to examine how well the PH model and the AFT models performed when it came to identifying the proximate variables influencing under – five mortality from National Family Health Survey data in Uttar Pradesh. Three AFT models that were based on the Weibull, exponential, and log-normal distributions were the only ones discussed in this article. The research employing a graphical technique and a statistical test revealed that the NFHS-5 data set has non-proportional hazards. The log-normal AFT model was the most acceptable model among the ones studied, according to the Akaike information criterion (AIC).

Agregación familiar para cardiopatía isquémica

RESUMEN Fundamento: la cardiopatía isquémica es una entidad nosológica de origen multifactorial con predisposición genética y susceptible a cambios ambientales. Objetivo: determinar la existencia de agregación familiar para cardiopatía isquémica en pacientes atendidos en consulta de cardiología en el Hospital General Docente Vladimir Ilich Lenin de Holguín. Métodos: se realizó un estudio observacional, analítico de casos y controles (estudio de agregación familiar). La muestra quedó conformada por 60 nuevos pacientes con el diagnóstico de cardiopatía isquémica (casos) y por otros 60 pacientes sin diagnóstico de enfermedad coronaria (controles), pareadas en la razón 1:1. Se emplearon como variables: sexo, edad, antecedentes familiares de cardiopatía isquémica y factores de riesgo ambientales. Se utilizó el estadígrafo Chi cuadrado. Luego se calculó el Odds Ratio para conocer la magnitud de asociación mediante la razón de productos cruzados. Resultados: en el grupo casos existió una mayor frecuencia en el antecedente familiar para cardiopatía isquémica, fue más elevada para los familiares de primer grado con 31 familiares y un 41,3 %. La hiperlipidemia se presentó como el factor de riesgo de mayor frecuencia con 36,7 % en el grupo casos y 37,1 % en el grupo controles. Se determinó un riesgo aproximadamente 4 veces mayor de padecer cardiopatía isquémica en aquellos individuos con historia familiar positiva de primer grado, mientras que los pacientes con hiperlipidemia tienen 4,8 más riesgo de padecer cardiopatía isquémica. Conclusiones: existe agregación familiar para cardiopatía isquémica y se mostró un riesgo mayor de enfermar los pacientes con historia familiar positiva para la enfermedad, principalmente con familiares de primer grado y con hiperlipidemia.

ABSTRACT Background: ischemic heart disease is a nosological entity of multifactorial origin with genetic predisposition and susceptible to environmental changes. Objective: to determine the existence of familial aggregation for ischemic heart disease in patients seen in the cardiology clinic at the Vladimir Ilich Lenin General Teaching Hospital in Holguín. Methods: an analytical observational study of cases and controls (family aggregation study) was carried out. The sample was made up of 60 new patients with a diagnosis of ischemic heart disease (cases) and another 60 patients without a diagnosis of coronary heart disease (controls), paired in a 1:1 ratio. The following variables were used: sex, age, family history of ischemic heart disease and environmental risk factors: smoking, hyperlipidemia, high blood pressure and sedentary lifestyle. The Chi square statistician was used by the Mantel-Haenszel method. The odds ratio (OR) was then calculated to determine the magnitude of association through the ratio of cross products. Results: in the case group there was a higher frequency in the family history for ischemic heart disease, being higher for first degree relatives with 31 relatives and 41.3 %. Hyperlipidemia was the most frequent risk factor with 36.7 % in the case group and 37.1 % in the control group. An approximately 4-fold increased risk of suffering from ischemic heart disease was determined in those individuals with a positive first-degree family history, while patients with hyperlipidemia have a 4.8 times greater risk of suffering from ischemic heart disease. Conclusions: there is family aggregation for ischemic heart disease and a higher risk of getting sick was shown in patients with a positive family history for the disease, mainly with first-degree relatives and with hyperlipidemia.

Determinants of to First Birth among women in Ethiopia using Cox Proportional Hazards Model

Backgroung: the age at first birth corresponds to the age of the mother giving birth to the first child. The delivery of the primary child is an important event that leaves a social mark on a woman's life. It is a woman's clear transition to parenthood with the roles and responsibilities involved. Premature birth can negatively affect women's socio-economic well-being in subsequent years. The study aims at accessing the determinants of age at first birth among Ethiopian women.Methods: the data for this study was extracted from the published reports of Ethiopian Demographic and Health Survey. The study used15, 683women aged 15-49 years from nine regions and two city administrations. Cox Proportional hazards model was used for identifying factors associated with age at first birth.Results: the median time of age at first birth for Ethiopian women was22 years with 95% CI; (21.82, 22.18).Cox Proportional Hazards Model shows that region, place of residence, education, wealth index, religion, work status, age at first marriage, age at first sex, and use of contraceptives have significant effects on the age at first birth at 5% level of significance. From region category, Amhararegion (p-value=0.398), BenishangulGumuz(p-value=0.112) Region, and Gambella region(p-value=0.062) were not significant at 5% level of significance.Conclusions: the age at first birth was positively correlated with the age at first sexual intercourse. A woman who has sexual intercourse much earlier gives birth earlier than a woman who is late for first intercourse.

Introdução: a idade do primeiro parto corresponde à idade da mãe que dá à luz ao primeiro filho. O parto do filho primário é um evento importante que deixa uma marca social na vida da mulher. É a transição clara de uma mulher para a paternidade com os papéis e responsabilidades envolvidos. O nascimento prematuro pode afetar negativamente o bem-estar socioeconômico das mulheres nos anos subsequentes. O estudo visa acessar os determinantes da idade ao primeiro parto entre as mulheres etíopes.Método: os dados para este estudo foram extraídos dos relatórios publicados do Ethiopian Demographic and Health Survey. O estudo utilizou15.683 mulheres de 15 a 49 anos de nove regiões e duas prefeituras. O modelo de riscos proporcionais de Cox foi utilizado para identificar os fatores associados à idade ao primeiro parto.Resultados: o tempo mediano de idade ao primeiro parto para mulheres etíopes foi de 22 anos com IC 95%; (21,82; 22,18).O Modelo de Riscos Proporcionais de Cox mostra que região, local de residência, educação, índice de riqueza, religião, situação profissional, idade do primeiro casamento, idade da primeira relação sexual e uso de anticoncepcionais têm efeitos significativos sobre a primeira idade nascimento ao nível de 5% de significância. Da categoria de região, Amhararegion (p-value=0,398), BenishangulGumuz (p-value=0,112) Region, e Gambella region (p-value=0,062) não foram significativos ao nível de significância de 5%.Conclusão: a idade do primeiro parto correlacionou-se positivamente com a idade da primeira relação sexual. Uma mulher que tem relações sexuais muito mais cedo, dá à luz mais cedo do que uma mulher que está atrasada para a primeira relação.

Factores de riesgo psicosocial intralaborales y estrés en empleados de una compañía constructora de Colombia / Intra-labor psychosocial risk factors and stress in employees of a construction company Colombian

Los riesgos psicosociales intralaborales asociados al estrés interfieren de manera negativa en el bienestar de los trabajadores de las empresas. En el sector de la construcción, los riesgos de mayor atención están enfocados a cuidar la salud física, por tal motivo el ministerio de protección social de Colombia valido la batería de riesgo Psicosocial. Objetivo: Identificar los riesgos psicosociales asociados a los altos niveles de estrés en los empleados de una constructora de la Ciudad de Bucaramanga Santander, con el fin establecer medidas preventivas. Materiales y Métodos: La población objeto de estudio fueron los 101 empleados con que contaba la compañía constructora de Colombia, de los cuales se aplicó el instrumento a 98 de ellos. Estudio de tipo descriptivo, cuantitativo de corte transversal. Se aplicó la Batería de instrumentos para la evaluación de factores de riesgo psicosocial intralaboral validada. Resultados: Los factores de riesgo psicosocial intralaborales fueron el estrés en un nivel muy alto en un 40.8% y este tuvo una relación con las recompensas derivadas de la organización que presentaron un valor (P<0.01), seguido de las demandas del ambiente con un valor (P<0.02 y las exigencias de responsabilidad en el cargo con un valor (P<0.05). Conclusiones: Las dinámicas laborales del personal operativo generaron niveles de estrés muy altos. Los resultados de esta investigación evidenciaron que los síntomas asociados al estrés pueden afectar la salud física y mental de los colaboradores(AU)

Intra-labor Intra-labor psychosocial risks associated with stress interfere negatively with the company workers well-being. In the construction sector, the risks of greater attention are focused on taking care of physical health, for this reason the Ministry of Social Protection of Colombia validated the Psychosocial risk battery. Objective: To identify the psychosocial risks associated with high levels of stress in the employees of a construction company in the City of Bucaramanga Santander, in order to establish preventive measures. Materials and Methods: The population under study were the 101 employees of the Colombian construction company, of whom the instrument was applied to 98 of them. Descriptive, quantitative, cross-sectional study. The validated battery of instruments for the evaluation of intralabor psychosocial risk factors was applied. Results: The intra-labor psychosocial risk factors were: stress at a very high level in 40.8% and this had a relationship with the rewards derived from the organization that presented a value (P <0.01), followed by the demands of the environment with a value (P<0.02) and the demands of responsibility in the position with a value (P<0.05). Conclusions: The labor dynamics of the operative personnel generated very high levels of stress. The results of this investigation showed that the symptoms associated with stress can affect the physical and mental health of employees(AU)