Table 2.
Relative risk (HR and 95% CI) of death by end of 2003 by weight category and BMI class in 1975 or 1981 for men and women. Models adjusted for age both for 1975 and 1981 BMI
| BMI class | BMI, age-adjusted, HR (95% CI) |
|||
|---|---|---|---|---|
| 1975 |
1981 |
|||
| women | men | women | men | |
| Underweight | ||||
| <18.5 kg/m2 | 1.22 (0.76–1.97) | 0.28 (0.07–1.10) | 1.43 (0.82–2.51) | 1.00 (0.34–2.98) |
| Normal weight | ||||
| 18.5 to <22 kg/m2 | 1.00 (reference) | 1.00 | 1.00 | 1.00 |
| 22 to <23.5 kg/m2 | 0.82 (0.60–1.13) | 0.97 (0.77–1.23) | 0.95 (0.70–1.30) | 1.17 (0.90–1.53) |
| 23.5 to <25 kg/m2 | 1.04 (0.77–1.40) | 1.15 (0.90–1.45) | 0.93 (0.67–1.30) | 1.02 (0.78–1.33) |
| Overweight | ||||
| 25 to <27 kg/m2 | 0.91 (0.64–1.30) | 1.14 (0.89–1.46) | 1.16 (0.84–1.60) | 1.15 (0.89–1.49) |
| 27 to <30 kg/m2 | 0.88 (0.59–1.32) | 1.40 (1.07–1.82) | 0.88 (0.59–1.30) | 1.42 (1.08–1.87) |
| Obese | ||||
| ≥30 kg/m2 | 1.07 (0.61–1.88) | 1.61 (1.08–2.41) | 1.06 (0.65–1.73) | 1.42 (0.96–2.09) |
| Per SD of BMI | 0.96 (0.87–1.07) | 1.15 (1.07–1.24) | 0.99 (0.88–1.11) | 1.11 (1.03–1.20) |
a
Subjects with BMI 18.5 to <22 kg/m2 were the reference category.