Table 1.
Body-Mass Index (BMI) and Waist Circumference in Relation to Death from Any Cause among Women Who Never Smoked, According to Level of Education.*
| Variable | Education ≤12 Yr | Education >12 Yr | ||||||
|---|---|---|---|---|---|---|---|---|
| No. of Deaths | Person-Yr | Hazard Ratio (95% CI)† | No. of Deaths | Person-Yr | Hazard Ratio (95% CI)† | |||
| Adjusted | Additionally Adjusted for BMI | Adjusted | Additionally Adjusted for BMI | |||||
| BMI | ||||||||
|
| ||||||||
| 20.0–24.9 | 39 | 14,883 | 1.00 (reference) | 117 | 115,888 | 1.00 (reference) | ||
|
| ||||||||
| 25.0–29.9 | 61 | 21,465 | 0.88 (0.59–1.33) | 187 | 105,599 | 1.38 (1.09–1.75) | ||
|
| ||||||||
| 30.0–34.9 | 42 | 13,181 | 0.90 (0.57–1.41) | 105 | 52,480 | 1.48 (1.13–1.94) | ||
|
| ||||||||
| 35.0–49.9 | 48 | 10,675 | 1.43 (0.93–2.21) | 107 | 40,445 | 1.94 (1.48–2.55) | ||
|
| ||||||||
| P value for trend | 0.06 | <0.001 | ||||||
|
| ||||||||
| Waist circumference | ||||||||
|
| ||||||||
| 26–29 in. | 23 | 10,607 | 1.00 (reference) | 1.00 (reference) | 95 | 88,999 | 1.00 (reference) | 1.00 (reference) |
|
| ||||||||
| 30–33 in. | 39 | 15,116 | 0.99 (0.58–1.67) | 0.96 (0.55–1.67) | 128 | 84,604 | 1.20 (0.91–1.56) | 1.12 (0.84–1.48) |
|
| ||||||||
| 34–37 in. | 46 | 14,137 | 1.18 (0.71–1.96) | 1.10 (0.61–1.99) | 119 | 55,332 | 1.53 (1.16–2.02) | 1.34 (0.97–1.85) |
|
| ||||||||
| 38–47 in. | 37 | 10,187 | 1.29 (0.75–2.21) | 1.03 (0.53–2.01) | 94 | 39,398 | 1.67 (1.24–2.24) | 1.33 (0.91–1.94) |
|
| ||||||||
| P value for trend | 0.24 | 0.84 | <0.001 | 0.11 | ||||
*
The BMI is the weight in kilograms divided by the square of the height in meters. To convert inches to centimeters, multiply by 2.54.
†
All hazard ratios were adjusted for age, questionnaire cycle, level of education, marital status, vigorous physical activity, and alcohol intake. Hazard ratios for waist circumference were additionally adjusted for BMI. CI denotes confidence interval.