Good vacation and job rotation systems were beneficial for the hemoglobin level of workers at high altitude, a cross-sectional study along the Qinghai Tibet railway, China,International Journal of Industrial Ergonomics

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Good vacation and job rotation systems were beneficial for the hemoglobin level of workers at high altitude, a cross-sectional study along the Qinghai Tibet railway, China
International Journal of Industrial Ergonomics ( IF 3.1 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.ergon.2020.103055
Shurong Han , Di Zhou , Shiwei Ma , Shiping Wu , Min Shen , Yu Fu , Yongxiang Qiu , Lin Zhao , Shuo Han , Zhangjian Chen , Guang Jia

Abstract Working and travelling in high-altitude regions have been associated with a variety of adverse health effects. The aim of this study was to explore a good vacation and job rotation system to prevent workers at high altitude from chronic altitude sickness. A total of 985 healthy male workers along the Qinghai-Tibet Railway, aged from 21 to 58 years (mean age 37.7 ± 8.6 years), were included into this study. The subjects took different short–term vacations, with different ratios of rest and work days. Furthermore, job rotation in low altitude was implemented in 127 (12.9%) subjects, who were transferred to relatively low altitude areas after working in plateau areas for more than three months. The association between vacation type and low altitude job rotation with prevalence of hyperhemoglobin (hemoglobin >175 g/L) was analyzed. Results showed that the risk of hyperhemoglobin decreased significantly with the increase of ratio of rest and work days, after adjusting for other confounding variables (age, ethnicity, education, body mass index, etc.) using multivariable logistic regression analysis. Meanwhile, the prevalence of hyperhemoglobin in job rotated workers was significantly lower than that in non-rotated workers [OR = 0.56, 95% CI: 0.37 to 0.84, p

更新日期：2020-11-01

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