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Positive rate of musculoskeletal symptoms by general- and job characteristics, and posture stability scale of subjects (n = 2,140)
Chi-square test: smoking, drinking, exercise.
Chi-square test for trend: age, tenure, physical burden, job control.
*p < 0.05 by chi-square test or chi-square test for trend, comparison between subgroups.
†p < 0.01 by chi-square test or chi-square test for trend, comparison between subgroups.
