TABLE 3.
Multivariate Relative Risks of CHD According to Categories of Updated Physical Activity Levels, Nurses’ Health Study, 1980 to 2000
| Physical Activity (h/wk)
|
P | |||
|---|---|---|---|---|
| ≥3.5 | 1–3.49 | <1 | ||
| All participants | ||||
| Multivariate RR without BMI | 1.00 | 1.43 (1.27, 1.61) | 1.58 (1.39, 1.80) | <0.001 |
| Multivariate RR with BMI* | 1.00 | 1.34 (1.18, 1.51) | 1.43 (1.26, 1.63) | <0.001 |
| Women who never smoked | ||||
| Multivariate RR without BMI | 1.00 | 1.39 (1.11, 1.74) | 1.75 (1.38, 2.21) | <0.001 |
| Multivariate RR with BMI | 1.00 | 1.28 (1.02, 1.60) | 1.51 (1.19, 1.92) | <0.001 |
| Past smokers | ||||
| Multivariate RR without BMI | 1.00 | 1.47 (1.20, 1.79) | 1.79 (1.44, 2.21) | 0.001 |
| Multivariate RR with BMI | 1.00 | 1.37 (1.12, 1.68) | 1.63 (1.32, 2.02) | <0.001 |
| Current smokers | ||||
| Multivariate RR without BMI | 1.00 | 1.43 (1.16, 1.76) | 1.31 (1.05, 1.65) | 0.009 |
| Multivariate RR with BMI | 1.00 | 1.38 (1.12, 1.70) | 1.24 (0.99, 1.56) | 0.04 |
Multivariate analyses were adjusted for age (<50, 50 to 54, 55 to 59, 60 to 64, ≥65), smoking status (never, past, current [1 to 14, 15 to 24, ≥25 cigarettes/d], adjusted for the analyses for all women only), parental history of coronary heart disease, and postmenopausal status and hormone use (never use, past, current), alcohol consumption (0, 0.1 to 4.9, 5 to 14.9, ≥15 g/d), and aspirin use (<1, 1 to 2, 3 to 6, 7 to 14, 15+/wk). The number of smoked cigarettes [1 to 14, 15 to 24, ≥25 cigarettes/d] was controlled for current smokers.
*
BMI was adjusted in 3 categories (<25, 25 to 29.9, ≥30 kg/m2).