XIAO Shu-yu, QI Hui-sheng, ZHANG Qun, LI Lei, YUAN Ju-xiang, SHEN Fu-hai. Incidence Characteristics of Pneumoconiosis Patients of Different Occupational Categories in a Coal Mine Group in Shanxi Province[J]. Journal of Environmental and Occupational Medicine, 2016, 33(7): 661-664. DOI: 10.13213/j.cnki.jeom.2016.15614
Citation: XIAO Shu-yu, QI Hui-sheng, ZHANG Qun, LI Lei, YUAN Ju-xiang, SHEN Fu-hai. Incidence Characteristics of Pneumoconiosis Patients of Different Occupational Categories in a Coal Mine Group in Shanxi Province[J]. Journal of Environmental and Occupational Medicine, 2016, 33(7): 661-664. DOI: 10.13213/j.cnki.jeom.2016.15614

Incidence Characteristics of Pneumoconiosis Patients of Different Occupational Categories in a Coal Mine Group in Shanxi Province

  • Objective To assess the effects of different occupational categories(working conditions) on workers' health through investigating the incidence characteristics of workers from a coal mine in Shanxi Province.
    Methods We collected data on occupational history and occupational disease diagnosis of 1 847 pneumoconiosis patients who were employed from 1970 to 2010 in a coal mine group in Shanxi to establish a database. According to the occupational history data, the subjects were divided as tunneling, mining, mixing, and ancillary workers to perform statistical analysis on latency, age of onset, years of exposure to dust, proportion of concurrent tuberculosis, and proportion of workers disengaged from dust exposure at diagnosis.
    Results A total of 1 847 cases of pneumoconiosis were investigated. For tunneling, mining, mixing, and ancillary workers, the average latent period was(21.9±8.8), (23.7±9.1), (17.0±6.3), and(23.9±6.1) years, respectively; the average age of onset was(46.0±8.4), (48.2±8.3), (42.3±7.2), and(44.0±6.2) years old, respectively; the average years of dust exposure was(19.6±7.2), (21.6±7.8), (16.2±5.0), and(20.4±6.5) years, respectively; the proportion of patients disengaged from dust exposure at diagnosis was 46.8%, 57.8%, 29.6%, and 60.7% respectively. There were differences in above indicators among workers with different job categories(all Ps < 0.05). The mixing workers presented the shortest latent period, youngest age of onset, least years of exposure to dust, and smallest proportion of patients disengaged from dust exposure at diagnosis. The proportions of patients with concurrent tuberculosis were 1.8%, 1.0%, 3.7%, and 2.6% for tunneling, mining, mixing, and ancillary workers, respectively, and there were no significant differences.
    Conclusion The shortest latent period, youngest diagnosis age, least years of exposure to dust, and smallest proportion of patients disengaged from dust exposure at diagnosis are all found in mixing workers.
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