Table 3

 Relation of smoking intensity with job strain and effort-reward imbalance among smokers: adjusted odds ratios (ORs) and their 95% confidence intervals (CIs)

WomenMenp for sex interaction
10–19 cigarettes20+ cigarettes10–19 cigarettes20+ cigarettes
OR*(95% CI)OR*(95% CI)OR*(95% CI)OR*(95% CI)
Light smokers (1–9 cigarettes per day) formed the reference category within the smoking intensity indicator. *Adjusted for age, basic education, occupational status, type of employment, and marital status.
Job control (component of job strain)0.356
    High job control1.001.001.001.00
    Intermediate job control1.05(0.91 to 1.21)1.13(0.87 to 1.48)1.20(0.91 to 1.59)1.22(0.88 to 1.70)
    Low job control1.19(1.03 to 1.38)1.49(1.15 to 1.94)1.28(0.93 to 1.75)1.42(0.99 to 2.03)
Job demands (component of job strain)0.841
    Low job demands1.001.001.001.00
    Intermediate job demands0.99(0.99 to 1.14)1.14(0.89 to 1.48)0.92(0.70 to 1.21)1.04(0.76 to 1.42)
    High job demands0.97(0.86 to 1.11)1.07(0.83 to 1.39)0.90(0.67 to 1.22)0.92(0.65 to 1.30)
Job strain0.114
    Low strain1.001.001.001.00
    Active jobs1.01(0.86 to 1.19)1.37(1.01 to 1.87)1.06(0.78 to 1.45)0.91(0.63 to 1.32)
    Passive jobs1.15(0.97 to 1.35)1.61(1.18 to 2.20)1.23(0.88 to 1.72)1.38(0.95 to 2.01)
    High strain1.16(0.99 to 1.36)1.55(1.14 to 2.10)1.11(0.78 to 1.58)1.19(0.80 to 1.77)
Effort (component of effort-reward imbalance)0.633
    High effort1.001.001.001.00
    Intermediate effort1.01(0.90 to 1.14)1.03(0.83 to 1.28)0.88(0.67 to 1.17)0.96(0.69 to 1.33)
    Low effort1.31(1.08 to 1.59)1.66(1.21 to 2.27)0.88(0.61 to 1.27)1.12(0.74 to 1.68)
Rewards (component of effort-reward imbalance)0.711
    High rewards1.001.001.001.00
    Intermediate rewards1.24(1.07 to 1.44)1.20(0.92 to 1.57)1.09(0.80 to 1.49)1.11(0.77 to 1.59)
    Low rewards1.26(1.08 to 1.46)1.58(1.22 to 2.04)1.26(0.92 to 1.73)1.61(1.13 to 2.30)
Effort-reward imbalance0.521
    Low imbalance1.001.001.001.00
    Intermediate imbalance1.15(1.00 to 1.34)1.03(0.79 to 1.34)1.01(0.75 to 1.35)0.75(0.53 to 1.05)
    High imbalance1.19(1.03 to 1.39)1.28(0.98 to 1.66)1.20(0.88 to 1.63)1.23(0.88 to 1.73)