Table 2 Number of cases of depressive disorders and referents with different work characteristics and potential confounders
Exposed referentsExposed casesBivariate OR (95% CI)Multivariate model “work”Multivariate model “work and life”Multivariate model “work, life and symptoms at baseline”
Cognitive requirements in
    Balance260361111
    Low imbalance2951.2 (0.5 to 3.4)0.8 (0.2 to 2.5)0.5 (0.2 to 2.2)0.4 (0.1 to 1.7)
    High imbalance33102.2 (1.0 to 4.8)1.7 (0.7 to 4.3)1.2 (0.4 to 3.3)1.2 (0.4 to 3.5)
Influence on what to do
    Own5261
    Collective177281.4 (0.5 to 3.5)
    No92171.6 (0.6 to 4.3)
Influence on how to do it
    Own125181111
    Collective161220.9 (0.5 to 1.8)1.0 (0.5 to 2.1)0.8 (0.4 to 1.7)1.1 (0.4 to 2.6)
    No35112.2 (0.9 to 5.0)1.1 (0.4 to 3.0)1.0 (0.3 to 2.8)1.2 (0.4 to 3.6)
Required conformance to schedule
    Low112131111
    Moderate162251.3 (0.7 to 2.7)1.2 (0.5 to 2.6)1.3 (0.6 to 3.1)0.9 (0.4 to 2.3)
    High47132.4 (1.0 to 5.5)1.3 (0.5 to 3.9)1.5 (0.5 to 4.6)1.0 (0.3 to 3.5)
Time pressure
    Low9671111
    Moderate170241.9 (0.8 to 4.7)1.9 (0.7 to 5.0)1.8 (0.6 to 4.8)2.0 (0.7 to 5.8)
    High53205.2 (2.1 to 13.0)3.8 (1.2 to 11.8)3.3 (1.0 to 10.1)3.3 (0.9 to 12.4)
Hindrances goals and resources85201.8 (1.0 to 3.3)0.8 (0.4 to 1.8)0.8 (0.4 to 1.7)0.9 (0.4 to 2.0)
Hindrances support from colleagues and supervisors23208.3 (4.1 to 16.8)7.4 (3.2 to 17.0)7.4 (3.2 to 17.3)6.4 (2.6 to 15.8)
Deterioration in work characteristics93272.8 (1.5 to 5.0)2.8 (1.4 to 5.5)2.8 (1.4 to 5.7)2.8 (1.3 to 6.1)
Financial difficulties1295.5 (2.2 to 13.9)6.0 (2.0 to 17.9)5.6 (1.7 to 18.6)
Living alone80131.2 (0.6 to 2.4)
Life events (last year s-r)
    011212111
    1 to 3192311.5 (0.7 to 3.1)1.7 (0.7 to 3.9)1.4 (0.6 to 3.6)
    >41873.6 (1.3 to 10.4)5.2 (1.5 to 17.8)3.7 (1.0 to 14.2)
Age group
    <3478111
    35 to 49136160.8 (0.4 to 1.9)
    >49108241.6 (0.7 to 3.4)
Female sex182361.8 (1.0 to 3.5)1.6 (0.7 to 3.4)1.3 (0.6 to 3.1)
Symptoms of mental illness at baseline39278.8 (4.6 to 17)6.6 (3.0 to 14.7)
  • Bivariate analysis of the association between each independent variable and the outcome. Multivariate analyses performed in three steps: the first model (work) includes all work characteristics with a p value <0.2 in bivariate analysis; in the second model (work and life), the same work-related variables were included together with the non-work variables which showed a p value <0.2 in bivariate analysis. In the final model (work, life and symptoms at baseline) symptoms of mental illness at baseline were added to the previous model. Odds ratios with 95% CIs are used as the measure of association.