Effect modification of the association between the effort–reward ratio and health outcomes by intrinsic effort, employment grade, and social support at work
| Intrinsic effort* | Employment grade† | Social support at work* | |||||
|---|---|---|---|---|---|---|---|
| Think about work after hours | Do not think about work after hours | Administrative | Professional | Clerical | Low social support at work | High social support at work | |
| *Adjusted for age, sex, and employment grade. †Adjusted for age and sex. | |||||||
| All CHD | 5586 (554) | 4244 (373) | 2929 (242) | 4741 (441) | 2200 (245) | 3395 (325) | 6401 (592) |
| Effort–reward ratio | |||||||
| Quartile 1 | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline |
| Quartile 2 | 1.14 (0.85–1.53) | 0.99 (0.75–1.29) | 0.89 (0.55–1.44) | 0.97 (0.73–1.30) | 1.19 (0.86–1.63) | 1.06 (0.69–1.61) | 1.08 (0.86–1.34) |
| Quartile 3 | 1.51 (1.14–2.00) | 0.92 (0.68–1.25) | 1.15 (0.73–1.80) | 1.31 (1.00–1.73) | 1.00 (0.68–1.48) | 1.46 (1.00–2.15) | 1.27 (1.01–1.60) |
| Quartile 4 | 1.39 (1.05–1.85) | 1.31 (0.98–1.75) | 1.19 (0.75–1.87) | 1.26 (0.96–1.66) | 1.56 (1.10–2.22) | 1.77 (1.24–2.54) | 1.17 (0.90–1.54) |
| Fatal CHD/NF MI | 5801 (188) | 4378 (112) | 3007 (87) | 4908 (144) | 2306 (69) | 3523 (95) | 6623 (204) |
| Effort–reward ratio | |||||||
| Quartile 1 | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline |
| Quartile 2 | 1.35 (0.82–2.22) | 1.37 (0.83–2.26) | 1.30 (0.52–3.25) | 1.49 (0.90–2.47) | 1.41 (0.78–2.58) | 1.79 (0.78–4.13) | 1.35 (0.92–1.98) |
| Quartile 3 | 1.59 (0.98–2.56) | 1.33 (0.77–2.30) | 1.99 (0.84–4.71) | 1.62 (0.98–2.69) | 1.03 (0.49–2.19) | 2.26 (1.03–4.94) | 1.56 (1.05–2.31) |
| Quartile 4 | 1.01 (0.61–1.68) | 1.61 (0.93–2.77) | 1.27 (0.52–3.13) | 1.14 (0.67–1.95) | 1.71 (0.90–3.24) | 2.33 (1.10–4.94) | 0.97 (0.58–1.61) |
| Poor physical functioning | 4067 (1049) | 2833 (675) | 2331 (470) | 3473 (820) | 1114 (438) | 2302 (653) | 4586 (1066) |
| Effort–reward ratio | |||||||
| Quartile 1 | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline |
| Quartile 2 | 1.10 (0.86–1.42) | 1.03 (0.82–1.31) | 1.11 (0.75–1.64) | 0.95 (0.75–1.21) | 1.23 (0.90–1.68) | 0.80 (0.57–1.13) | 1.17 (0.96–1.42) |
| Quartile 3 | 1.45 (1.13–1.85) | 0.92 (0.71–1.19) | 1.02 (0.69–1.49) | 1.34 (1.06–1.69) | 1.30 (0.91–1.84) | 1.14 (0.82–1.56) | 1.25 (1.02–1.53) |
| Quartile 4 | 1.61 (1.26–2.04) | 1.10 (0.84–1.44) | 1.38 (0.94–2.02) | 1.60 (1.27–2.02) | 0.86 (0.58–1.26) | 1.30 (0.96–1.75) | 1.39 (1.11–1.75) |
| Poor mental functioning | 4167 (1127) | 2833 (600) | 2331 (462) | 3473 (910) | 1114 (359) | 2302 (682) | 4586 (1036) |
| Effort–reward ratio | |||||||
| Quartile 1 | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline | Baseline |
| Quartile 2 | 0.90 (0.70–1.16) | 1.20 (0.94–1.54) | 1.01 (0.65–1.56) | 0.96 (0.75–1.22) | 1.30 (0.94–1.81) | 1.07 (0.75–1.53) | 1.08 (0.88–1.33) |
| Quartile 3 | 1.29 (1.01–1.64) | 1.36 (1.04–1.78) | 1.31 (0.86–1.99) | 1.36 (1.07–1.71) | 1.67 (1.16–2.42) | 1.34 (0.96–1.88) | 1.51 (1.23–1.86) |
| Quartile 4 | 1.95 (1.54–2.46) | 1.85 (1.40–2.45) | 2.10 (1.40–3.17) | 2.08 (1.66–2.60) | 2.20 (1.51–3.20) | 2.19 (1.60–3.00) | 2.05 (1.64–2.57) |