Associations between work environment trajectories and latent smoking behaviour trajectory membership, adjusted for covariates
| Work environment condition | Heavy smoker | Light smoker | Former smoker |
| OR (95% CI) | OR (95% CI) | OR (95% CI) | |
| Skill discretion | |||
| Low vs high skill discretion | 1.67 (1.15 to 2.44) | 1.46 (0.91 to 2.35) | 1.38 (0.92 to 2.08) |
| Medium vs high skill discretion | 1.61 (1.17 to 2.23) | 1.47 (0.98 to 2.23) | 1.14 (0.79 to 1.65) |
| Decision authority | |||
| High vs low decision authority | 0.96 (0.76 to 1.21) | 0.78 (0.58 to 1.05) | 0.70 (0.54 to 0.92) |
| Psychological demands | |||
| High vs low psychological demands | 1.37 (1.05 to 1.79) | 1.22 (0.91 to 1.65) | 1.34 (1.02 to 1.76) |
| Job insecurity | |||
| High job insecurity vs low job insecurity | 1.20 (0.71 to 2.02) | 0.97 (0.44 to 2.17) | 1.63 (0.94 to 2.83) |
| Decreasing job insecurity vs low job insecurity | 1.09 (0.81 to 1.47) | 1.11 (0.79 to 1.56) | 1.38 (0.99 to 1.91) |
| Increasing job insecurity vs low job insecurity | 1.48 (0.96 to 2.26) | 1.09 (0.68 to 1.77) | 1.05 (0.69 to 1.62) |
| Physical exertion | |||
| High vs low physical exertion | 2.52 (1.93 to 3.28) | 1.32 (0.98 to 1.77) | 1.34 (1.01 to 1.79) |
| Increasing physical exertion vs low physical exertion | 1.50 (1.02 to 2.21) | 0.84 (0.52 to 1.38) | 0.78 (0.51 to 1.19) |
| Decreasing physical exertion vs low physical exertion | 1.90 (1.36 to 2.65) | 1.21 (0.81 to 1.80) | 1.35 (0.94 to 1.93) |
| Social support | |||
| Low vs high social support | 1.41 (1.11 to 1.79) | 1.09 (0.81 to 1.46) | 1.36 (0.98 to 1.88) |
Each work environment dimension was explored in its own model.
Covariates in each model included race, sex, age, country of birth, marital status, dependent status, highest level of education obtained, province of residence, shift schedule, full-time employment and health restrictions in 1994.