title: Health-Related Quality of Life and Associated Factors of Frontline Railway Workers: A Cross-Sectional Survey in the Ankang Area, Shaanxi Province, China.
abstract: After validation of the widely used health-related quality of life (HRQOL) generic measure, the Short Form 36 version 2 (SF-36v2), we investigated the HRQOL and associated factors of frontline railway workers in China. Ground workers, conductors, and train drivers were selected from Ankang Precinct by using a stratified cluster sampling technique. A total of 784 frontline railway workers participated in the survey. The reliability and validity of SF-36v2 was satisfactory. The physical component summary (PCS) scores of three subgroups attained the average range for the USA general population, whereas the mental component summary (MCS) scores were well below the range. Most domains scored below the norm, except for the physical functioning (PF) domain. Among three subgroups, train drivers reported significantly lower scores on MCS and six health domains (excluding PF and bodily pain (BP)). After controlled confounders, conductors had significantly higher PCS and MCS scores than ground workers. There is heterogeneity on risk factors among three subgroups, but having long or irregular working schedules was negatively associated with HRQOL in all subgroups. SF-36v2 is a reliable and valid HRQOL measurement in railway workers in China. The frontline railway workers' physical health was comparative to American norms, whilst mental health was relatively worse. Long or irregular working schedules were the most important factors.
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Heath, Xi'an Jiaotong University Health Science Center, No. 76 West Yanta Road, Xi'an 710061, Shaanxi, China. ppflyman1@stu.xjtu.edu.cn.
authors.forename: Xiaona
authors.initials: X
authors.lastname: Zhang
authors.affiliation: School of Medicine, Flinders University, Adelaide, SA 5042, Australia. gang.chen@flinders.edu.au.
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
authors.affiliation: Xi'an Railway Center for Disease Control and Prevention, Xi'an 710054, Shaanxi, China. hf8876303@163.com.
authors.forename: Feng
authors.initials: F
authors.lastname: Xu
authors.affiliation: Department of Nursing, Xi'an Jiaotong University Health Science Center, No. 76 West Yanta Road, Xi'an 710061, Shaanxi, China. dfyq100@163.com.
authors.forename: Kaina
authors.initials: K
authors.lastname: Zhou
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Heath, Xi'an Jiaotong University Health Science Center, No. 76 West Yanta Road, Xi'an 710061, Shaanxi, China. zhuanggh@mail.xjtu.edu.cn.
authors.forename: Guihua
authors.initials: G
authors.lastname: Zhuang
mesh_terms: D000328:Adult; D002681:China; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008603:Mental Health; D008875:Middle Aged; D016273:Occupational Exposure; D016272:Occupational Health; D011788:Quality of Life; D011890:Railroads; D015203:Reproducibility of Results; D012307:Risk Factors; D011795:Surveys and Questionnaires; D017132:Workplace
keywords: China; Short Form 36 version 2; frontline railway worker; quality of life; risk factor