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Fig. 1 | BMC Public Health

Fig. 1

From: Associations of musculoskeletal disorders with occupational stress and mental health among coal miners in Xinjiang, China: a cross-sectional study

Fig. 1

Logistic regression analysis of factors influencing MSDs in coal miners. Note: Independent variable assignment: Sex: male = 1, female =2; Age: < 30 = 1, 30–39 = 2, 40–49 = 3, 50–60 = 4; Working years: < 5 = 1, 5–15 = 2, > 15 = 3; Shift: fixed day shift = 1, two shifts = 2, four shifts = 3; Type of work: coal miner = 1, heading driver = 2, transport worker = 3, frame worker = 4, safety supervisor = 5; Education: junior high school or below = 1, high school = 2, junior college or above = 3; Monthly income: ≤5000 = 1, 5001- = 2, 6501- = 3, 8001- = 4; Occupational stress: non-occupational stress = 0, occupational stress = 1; Mental health status: non-mental disorders = 0, mental disorders = 1

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