Table 3.
 Association between BMI and CVD mortality in south Asians
| Cause and No of CVD deaths | Body mass index at baseline | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| <15.0 | 15.0-17.4 | 17.5-19.9 | 20.0-22.4 | 22.5-24.9 | 25.0-27.4 | 27.5-29.9 | 30.0-32.4 | 32.5-34.9 | 35.0-50.0 | |
| All participants (n=287 432) | ||||||||||
| No of participants per BMI category | 6754 | 31 185 | 59 396 | 68 885 | 58 517 | 35 894 | 16 199 | 6988 | 2251 | 1363 |
| CVD (n=8190) | ||||||||||
| No of deaths per BMI category | 329 | 1085 | 1750 | 2028 | 1553 | 864 | 333 | 166 | 45 | 37 |
| Hazard ratio (95% CI) | 0.95 (0.79 to 1.14) | 0.85 (0.76 to 0.95) | 0.90 (0.82 to 0.99) | 0.97 (0.89 to 1.06) | Reference | 1.03 (0.93 to 1.15) | 1.01 (0.87 to 1.18) | 1.14 (0.92 to 1.42) | 0.95 (0.64 to 1.41) | 1.27 (0.81 to 1.97) |
| CHD (n=4806) | ||||||||||
| No of deaths per BMI category | 180 | 579 | 972 | 1215 | 951 | 536 | 215 | 106 | 26 | 26 |
| Hazard ratio (95% CI) | 0.83 (0.64 to 1.07) | 0.78 (0.67 to 0.9) | 0.83 (0.74 to 0.94) | 0.96 (0.86 to 1.07) | Reference | 1.07 (0.93 to 1.23) | 1.18 (0.98 to 1.43) | 1.17 (0.88 to 1.55) | 1.15 (0.71 to 1.87) | 1.90 (1.15 to 3.12) |
| Stroke (n=2083) | ||||||||||
| No of deaths per BMI category | 78 | 313 | 504 | 516 | 366 | 197 | 66 | 27 | 9 | 7 |
| Hazard ratio (95% CI) | 0.95 (0.68 to 1.33) | 0.89 (0.72 to 1.10) | 0.97 (0.81 to 1.16) | 0.97 (0.81 to 1.15) | Reference | 0.97 (0.77 to 1.22) | 0.83 (0.59 to 1.15) | 0.93 (0.57 to 1.50) | 0.81 (0.33 to 1.97) | 0.48 (0.12 to 1.95) |
Analyses for the calculation of hazard ratios were adjusted for baseline age, sex, cigarette smoking, alcohol consumption, educational attainment, marital status, urban residence, and baseline status of cancer. All analyses excluded first three years of follow-up.