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Background and Objective: Considering the importance of quality of work life among nurses working in the intensive care unit, it is important to identify the components that affect this index. Therefore, the present study aimed to investigate the relationship between workload and work-related quality of life among nurses working in the intensive care unit. Materials and Methods: In the present cross-sectional and descriptive-analytical study, 384 nurses working in the intensive care unit were studied in 2021. The NASA task load index (NASA TLX) was used to determine workload, and the work-Related Quality of Life Questionnaire (WRQoL) was used to determine the quality of their working life. The obtained data were entered into SPSS software and analyzed. Results: The results demonstrated that the most effective factor in increasing workload is a physical need, and the most important dimension affecting the quality of work life is job satisfaction. The correlation between quantitative demographic parameters with workload and quality of life indicators also pointed to the significant correlation of the mentioned indicators with age, work experience, and the number of shifts per month. Conclusion: As evidenced by the results of this study, there was an inverse relationship between workload and WRQoL. It is necessary for hospital managers to be aware of the existing conditions and reduce the factors affecting workload to increase the WRQoL of nurses.

Background: This study aimed to investigate the association between demographic, social, and economic factors of employees and hearing loss. Methods: In this cross-sectional study, the required data were extracted from the periodic medical examination of 987 workers in an automotive industry. Kruskal-Wallis and Mann-Whitney tests were used to study the associations. The data were analyzed in the SPSS software. Results: In this study, most of the subjects were in the age group of 30-49 years and also had less than 10 years of working experience. In terms of education level, most of them had a diploma. The relationship between work experience and hearing loss indicated profound hearing loss among a workers with 10 to 20 years of work experience. According to age, the subjects over the age of 55 years had the highest prevalence of hearing loss (p = 0.04). Conclusion: Age and work experience, education, income, and type of job are among the factors that could predict the at risk population for hearing loss.

Background: Analysis of accident data based on social and economic factors can be useful in determining injury patterns and establishing operational policies to improve safety and health. The purpose of this study is to investigate the effect of socio-economic factors in accidents. Methods: This descriptive-analytical study was conducted based on information obtained from the Labor Inspection Office of Qom Province in 2017. In this study, the required information was extracted from recorded accident forms of 1048 accident cases occurred among victims who were over 18 years old. In this study, the dependent variables include the outcome of accidents divided into two groups of accidents leading to death and injury. Data were analyzed using Stata Software version 23 (Stat Crop. USA). Results: Based on the results, the presence of a safety officer in the industry reduced the risk of accidents leading to injury (AOR = 0.87, 95% CI: 0.72-0.91, P

Background and Objective: Heat stress is one of the major safety and health concern in the oil and gas industry. The main purpose of this study was to compare the heat stress of oil terminals in northern and southern Iran. In addition, two physiological parameters were utilized in order to validate these indices. Materials and Methods: This descriptive-analytical study was performed on 130 employees working at two oil terminals in Iran (i.e., Kharg and Neka). Initially, heat stress indices including Hang Seng Index (HIS), Allow Exposure Time (AET), WetBulb Globe Temperature (WBGT), and Predicted Four Hour Sweat Rate (P4SR) were measured in this study. Subsequently, the oral and tympanic temperature of the participants were taken in order to validate the mentioned indices using Pearson correlation test. The data were analyzed in SPSS software (version 22). Results: The results showed a significant correlation between the heat stress indices of the indoor workplace in Kharg, Iran, and physiological parameters (P 0.05). Conclusion: According to the results, WBGT and AET are valid indices to assess heat stress in oil terminals. In addition, it was revealed that the heat stress in indoor workplace in Kharg oil terminal was higher than that in Neka oil terminal.

Introduction: To determine the effectiveness of hearing protective devices that lack the technical information are one of the major challenges of occupational health experts to judge the impact of this exposure on reducing the level of occupational exposure to noise. The aim of this study was to design a built a hearing test adapter and expriment it to determine the reduction rate of earmuffs and earplugs. Methods: Technical information in real environments and glass industries were Hamadan kitchen garden and guards to ensure exceptional performance test results were compared with computational methods. Results: The results of the testing of Personal hearing protection compared with the results in real industry environment and octave-band method, have shown good regrassions average operating transmission losses. Results showed that the average noise reduction between measured and calculations method for earmuffs 9.3, 8.8 dB and 9.3, 11.2 dB for earplugs respectively. Comparison of the tests, did not show significant differences between the results in tow methods (P>0.05). Conclusion: The results of the testing designed Adaptor for some hearing protectors showed that the valid tool for used to reduction rate teste of earmuffs and earplugs