Cox proportional hazard derived hazard ratios of the association between phase 1 effort and reward at work and incident CHD during 11 years of follow up
| All CHD | Fatal CHD/non-fatal MI | |||||
|---|---|---|---|---|---|---|
| Age and sex adjusted | Age, sex, and grade adjusted | Age, sex, grade, and coronary risk factor adjusted | Age and sex adjusted | Age, sex, and grade adjusted | Age, sex, grade, and coronary risk factor adjusted | |
| Main model | ||||||
| Effort–reward ratio | 9870 (928) | 9870 (928) | 9004 (843) | 10221 (300) | 10221 (300) | 9318 (272) |
| Quartile 1 | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline |
| Quartile 2 | 0.96 (0.80–1.16) | 1.05 (0.86–1.27) | 1.01 (0.82–1.24) | 1.23 (0.87–1.73) | 1.42 (1.01–2.02) | 1.44 (1.00–2.08) |
| Quartile 3 | 1.13 (0.94–1.37) | 1.28 (1.05–1.55) | 1.17 (0.96–1.44) | 1.36 (0.97–1.89) | 1.65 (1.17–2.32) | 1.52 (1.06–2.19) |
| Quartile 4 | 1.22 (1.01–1.46) | 1.36 (1.12–1.65) | 1.26 (1.03–1.55) | 1.06 (0.74–1.51) | 1.28 (0.89–1.84) | 1.21 (0.82–1.78) |
| Trend | p=0.01 | p=0.0003 | p=0.008 | p=0.69 | p=0.17 | p=0.39 |
| 9836 (928) | 9836 (928) | 8975 (843) | 10185 (300) | 10185 (300) | 9287 (272) | |
| Low intrinsic effort | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline |
| High intrinsic effort | 1.18 (1.03–1.34) | 1.29 (1.13–1.48) | 1.26 (1.09–1.46) | 1.22 (0.96–1.54) | 1.41 (1.11–1.81) | 1.24 (0.96–1.60) |
| Subsidiary models | ||||||
| 9872 (928) | 9872 (928) | 9005 (843) | 10223 (300) | 10223 (300) | 9319 (272) | |
| Low effort | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline |
| Medium effort | 1.02 (0.87–1.20) | 1.12 (0.95–1.33) | 1.06 (0.89–1.26) | 1.28 (0.96–1.71) | 1.54 (1.14–2.09) | 1.42 (1.03–1.95) |
| High effort | 1.03 (0.88–1.20) | 1.22 (1.02–1.45) | 1.07 (0.89–1.28) | 1.08 (0.82–1.44) | 1.45 (1.06–1.98) | 1.28 (0.92–1.78) |
| Trend | p=0.75 | p=0.03 | p=0.46 | p=0.65 | p=0.03 | p=0.17 |
| 9877 (931) | 9877 (931) | 9011 (846) | 10228 (300) | 10228 (300) | 9325 (272) | |
| Low rewards | 1.19 (1.02–1.38) | 1.13 (0.97–1.31) | 1.16 (0.98–1.36) | 0.99 (0.75–1.29) | 0.90 (0.68–1.19) | 0.96 (0.72–1.28) |
| Medium rewards | 0.99 (0.84–1.16) | 0.97 (0.82–1.14) | 0.98 (0.82–1.16) | 0.99 (0.75–1.30) | 0.96 (0.73–1.26) | 1.00 (0.75–1.34) |
| High rewards | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline |
| Trend | p=0.03 | p=0.14 | p=0.09 | p=0.91 | p=0.45 | p=0.78 |