Proportional hazards derived adjusted hazard ratios (and 95% confidence intervals) for the association between baseline job strain and incidence of fatal CHD/non-fatal MI and all CHD, stratified by social support at work, employment grade, and age at entry
| Social support at work | Employment grade | Age at entry | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Low social support at work | High social support at work | Clerical | Professional | Administrative | 35–<40 | 40–<45 | 45–<50 | 50–55 | |
| All CHD | 5424 (529) | 4272 (375) | 2122 (231) | 4709 (437) | 2915 (242) | 2702 (161) | 2548 (187) | 1985 (220) | 2511 (342) |
| Low demand high control | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline |
| High demand low control | 1.51 (1.11 to 2.05) | 1.64 (1.18 to 2.30) | 1.31 (0.74 to 2.29) | 1.51 (1.13 to 2.01) | 1.81 (1.14 to 2.86) | 2.06 (1.19 to 3.56) | 1.52 (0.91 to 2.52) | 1.54 (1.00 to 2.39) | 1.46 (1.02 to 2.09) |
| Low demand low control | 1.26 (0.92 to 1.72) | 1.23 (0.89 to 1.70) | 1.02 (0.60 to 1.74) | 1.15 (0.85 to 1.57) | 1.50 (0.85 to 2.65) | 1.88 (1.08 to 3.29) | 1.28 (0.77 to 2.15) | 1.24 (0.80 to 1.90) | 1.06 (0.74 to 1.52) |
| High demand high control | 1.16 (0.86 to 1.57) | 1.16 (0.85 to 1.57) | 1.26 (0.59 to 2.69) | 1.25 (0.94 to 1.67) | 1.30 (0.89 to 1.91) | 1.22 (0.70 to 2.12) | 1.36 (0.84 to 2.20) | 0.97 (0.63 to 1.48) | 1.18 (0.84 to 1.66) |
| Fatal CHD/ non-fatal MI | 5634 (161) | 4410 (134) | 2228 (66) | 4874 (143) | 2993 (87) | 2768 (43) | 2628 (40) | 2063 (80) | 2636 (133) |
| Low demand high control | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline |
| High demand low control | 1.54 (0.92 to 2.58) | 1.31 (0.75 to 2.26) | 1.34 (0.51 to 3.55) | 1.17 (0.73 to 1.88) | 1.52 (0.70 to 3.29) | 1.73 (0.54 to 5.51) | 1.34 (0.53 to 3.42) | 1.45 (0.72 to 2.92) | 1.39 (0.82 to 2.37) |
| Low demand low control | 0.87 (0.49 to 1.53) | 0.97 (0.56 to 1.69) | 0.63 (0.24 to 1.61) | 0.76 (0.44 to 1.31) | 0.82 (0.27 to 2.55) | 1.96 (0.61 to 6.27) | 0.54 (0.17 to 1.71) | 0.81 (0.38 to 1.74) | 0.85 (0.48 to 1.50) |
| High demand high control | 1.12 (0.67 to 1.87) | 1.10 (0.69 to 1.75) | 2.01 (0.64 to 6.36) | 1.13 (0.71 to 1.78) | 1.32 (0.71 to 2.46) | 2.18 (0.74 to 6.41) | 0.92 (0.38 to 2.23) | 1.14 (0.60 to 2.18) | 0.96 (0.58 to 1.60) |