N | Ev. no | Rate | Model 1 | Model 2 | Model 1 | Model 2 | |
CHD events (n=135) | |||||||
OPA | |||||||
Low | 1343 | 69 | 3.20 | 1.66 (1.06 to 2.59) | 1.61 (1.02 to 2.52) | ||
Intermediate | 1127 | 29 | 2.07 | REF | REF | ||
High | 1104 | 37 | 2.61 | 1.18 (0.72 to 1.94) | 1.26 (0.76 to 2.08) | ||
P value* | 0.07 | 0.11 | |||||
SpPA | |||||||
Poor | 2231 | 105 | 2.97 | REF | REF | REF | REF |
Intermediate | 737 | 20 | 2.46 | 0.81 (0.50 to 1.32) | 0.87 (0.53 to 1.42) | 0.72 (0.47 to 1.09) | 0.83 (0.54 to 1.27) |
Recommended | 606 | 10 | 1.78 | 0.58 (0.30 to 1.12) | 0.76 (0.39 to 1.48) | ||
P value† | 0.08 | 0.36 | 0.12 | 0.39 | |||
CVD events (n=174) | |||||||
OPA | |||||||
Low | 1343 | 82 | 3.74 | 1.54 (1.04 to 2.29) | 1.50 (1.01 to 2.23) | ||
Intermediate | 1127 | 39 | 2.77 | REF | REF | ||
High | 1104 | 53 | 3.77 | 1.18 (0.77 to 1.79) | 1.20 (0.78 to 1.84) | ||
P value* | 0.13 | 0.12 | |||||
SpPA | |||||||
Poor | 2231 | 139 | 3.95 | REF | REF | REF | REF |
Intermediate | 737 | 23 | 2.94 | 0.76 (0.49 to 1.20) | 0.81 (0.51 to 1.27) | 0.68 (0.46 to 0.98) | 0.77 (0.53 to 1.14) |
Recommended | 606 | 12 | 2.24 | 0.58 (0.32 to 1.05) | 0.72 (0.39 to 1.32) | ||
P value† | 0.04 | 0.19 | 0.04 | 0.19 |
Men aged 25-64 years, free of CVD and currently employed at baseline (n=3574). Rates (x1000 person-years) are age-adjusted and estimated at the sample mean age.
Model 1: age, cohort, educational level, OPA and SpPA.
Model 2: model 1 plus body mass index, total cholesterol, HDL cholesterol, systolic BP, current smoking, diabetes and alcohol intake.
*Wald heterogeneity χ2 test (2 df).
†Wald trend χ2 test (1 df).
CHD, coronary heart disease; CVD, cardiovascular disease; HDL, high- density lipoprotein; OPA, occupational physical activity; SpPA, sport physical activity.