TABLE 3.
HRs and 95% CIs of all-cause mortality in relation to physical activity levels within strata of BMI and waist circumference groups1
| Deaths, n | Inactive | Moderately inactive | Moderately active | Active | HR per one-level difference in physical activity2 | |
| BMI | ||||||
| Model 13 | ||||||
| 18.5–24.9 kg/m2 | 8285 | 1 (reference) | 0.70 (0.66, 0.74) | 0.64 (0.60, 0.69) | 0.59 (0.55, 0.63) | 0.84 (0.82, 0.86) |
| 25–29.9 kg/m2 | 8815 | 1 (reference) | 0.77 (0.74, 0.82) | 0.74 (0.70, 0.79) | 0.72 (0.67, 0.77) | 0.90 (0.88, 0.92) |
| >30 kg/m2 | 4338 | 1 (reference) | 0.80 (0.74, 0.87) | 0.73 (0.67, 0.81) | 0.79 (0.71, 0.87) | 0.91 (0.88, 0.94) |
| Model 24 | ||||||
| 18.5–24.9 kg/m2 | 8285 | 1 (reference) | 0.76 (0.72, 0.81) | 0.71 (0.67, 0.76) | 0.65 (0.60, 0.70) | 0.87 (0.85, 0.89) |
| 25–29.9 kg/m2 | 8815 | 1 (reference) | 0.82 (0.77, 0.86) | 0.78 (0.73, 0.83) | 0.75 (0.70, 0.80) | 0.91 (0.89, 0.93) |
| >30 kg/m2 | 4338 | 1 (reference) | 0.84 (0.78, 0.91) | 0.76 (0.69, 0.84) | 0.82 (0.74, 0.90) | 0.92 (0.89, 0.95) |
| Waist circumference (cm) | ||||||
| Model 13 | ||||||
| <88 (F)/<102 (M) | 14,362 | 1 (reference) | 0.75 (0.72, 0.78) | 0.70 (0.67, 0.74) | 0.67 (0.63, 0.70) | 0.88 (0.86, 0.89) |
| ≥88 (F)/≥102 (M) | 7076 | 1 (reference) | 0.79 (0.75, 0.84) | 0.74 (0.69, 0.80) | 0.76 (0.70, 0.82) | 0.90 (0.88, 0.92) |
| Model 24 | ||||||
| <88 (F)/<102 (M) | 14,362 | 1 (reference) | 0.80 (0.76, 0.83) | 0.76 (0.72, 0.79) | 0.71 (0.68, 0.75) | 0.90 (0.88, 0.91) |
| ≥88 (F)/≥102 (M) | 7076 | 1 (reference) | 0.84 (0.79, 0.89) | 0.78 (0.73, 0.84) | 0.80 (0.73, 0.86) | 0.91 (0.89, 0.94) |
1
Data were analyzed by Cox regression models.
2
Physical activity variables entered into the model as an ordinal variable.
3
Model 1: adjusted for sex; stratified by age at recruitment and study center. For waist circumference, sex was included as a stratum variable rather than as a covariate to meet the proportional hazards assumption.
4
Model 2: adjusted as for model 1 and for education, smoking, and alcohol.