Table 4. Longitudinal associations between job strain at baseline and quitting smoking among baseline smokers (n = 9 975)1.
| Job strain at baseline | N participants | N (%) quitting smoking | OR (95% CI)2 for quitting smoking |
| No | 8 149 | 1 574 (19.3) | 1 (reference category) |
| Yes | 1 826 | 298 (16.3) | 0.91 (0.79, 1.04) |
| Job strain at baseline and follow-up | |||
| No and no | 7 192 | 1 411 (19.6) | 1 (reference category) |
| No and yes | 957 | 163 (17.0) | 0.86 (0.71, 1.03) |
| Yes and no | 1 029 | 167 (16.3) | 0.85 (0.71, 1.02) |
| Yes and yes | 797 | 131 (16.4) | 0.95 (0.77, 1.16) |
1
Studies and follow-up times: Belstress (4–7 years), FPS (2–4 years), HeSSup (5 years), SLOSH (1–4 years), WOLF Norrland (3–7 years) and Whitehall II (3–9 years.).
2
Effect estimates from a mixed effects logistic model, adjusted for baseline age, sex and baseline socioeconomic position, with study as the random effect.