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This study assessed the relationships of lifetime smoking and initiating smoking with job demands among 2,888 randomly selected workers, aged 15 yr or over, using a post-mailed questionnaire. Cumulated job demands (CJD) was defined as the number of: using pneumatic tools, other vibrating hand tools, hammer, tasks at height, working in adverse climate, pace of working, cold, heat, and noise exposure. Lifetime smoking was reported by 63.8% of subjects, and 5.9% initiated smoking during present job. Logistic model shows that lifetime smoking related to the CJD: OR adjusted for years with job 2.47 (95%CI 1.69-3.60) for CJD&gt; or =4, 1.50 (1.21-1.85) for CJD2-3, and 1.20 (1.00-1.44) for CJD1, vs. CJD0. Initiating smoking also related to the CJD: ORs 3.72 (1.95-7.11), 1.51 (0.96-2.39) and 1.47 (0.97-2.24), respectively. These associations were partly confounded by gender, income, obesity and job. Smoking related to job demands and their limitation should help preventing smoking.

Relationship of Physical Job Demands to Initiating Smoking among Working People: A Population-based Cross-sectional Study