Table 5

Logistic regression analysis: Combined effect of effort-reward imbalance and job strain on risk of myocardial infarction (multivariate odds ratios (95% CI), number of exposed)

MenWomen
adjustment (*)adjustment (†)adjustment (*)adjustment (†)
*Adjusted for effort-reward-ratio or overcommitment respectively and hypertension, total cholesterol, history of diabetes, family history of CHD; †Additionally adjusted for smoking (non-smoker, ex smoker, current smoker), lack of physical exercise, BMI.
Model I
    neither effort-reward-ratio >1 nor job strain present1.00 n=8051.00 n=7961.00 n=2381.00 n=235
    effort-reward-ratio > 1 but job strain absent1.31 (0.87 to 1.97) n=1151.42 (0.92 to 2.18) n=1140.49 (0.18 to 1.37) n=230.50 (0.17 to 1.44) n=23
    job strain present but effort-reward-ratio ≤ 11.28 (0.93 to 1.74) n=2161.30 (0.94 to 1.82) n=2141.45 (0.90 to 2.34) n=1241.31 (0.78 to 2.20) n=124
    effort-reward-ratio >1 AND job strain present1.75 (1.18 to 2.59) n=1322.02 (1.34 to 3.07) n=1301.53 (0.77 to 3.03) n=501.05 (0.50 to 2.19) n=50
Model II
    neither overcommitment nor job strain present1.00 n=6831.00 n=6751.00 n=1961.00 n=196
    overcommitment present but job strain absent1.25 (0.92 to 1.71) n=2371.20 (0.86 to 1.66) n=2351.52 (0.82 to 2.03) n=621.19 (0.62 to 2.30) n=62
    job strain present but overcommitment absent1.36 (0.97 to 1.89) n=1961.51 (1.05 to 2.15) n=1931.62 (0.95 to 2.76) n=1021.23 (0.69 to 2.20) n=102
    overcommitment AND job strain present1.49 (1.01 to 2.18) n=1521.31 (0.88 to 1.97) n=1512.47 (1.33 to 4.59) n=722.19 (1.11 to 4.28) n=72