Table 4.
Stratified analyses according to waist circumference
| Outcomes | Category of waist circumference | Estimated hazard ratio (95% confidence interval) a | P for interaction | ||
|---|---|---|---|---|---|
| Severe underweight | Moderate underweight | Mild underweight | |||
| Stroke | 1st tertile b | 1.45 (1.27–1.64) | 1.08 (0.97–1.19) | 1.08 (1.02–1.14) | 0.048 |
| 2nd tertile c | 0.78 (0.53–1.11) | 1.14 (0.95–1.37) | 1.07 (0.99–1.16) | ||
| 3rd tertile d | 1.31 (0.99–1.74) | 1.06 (0.85–1.32) | 1.18 (1.08–1.29) | ||
| Myocardial infarction | 1st tertile | 1.90 (1.63–2.21) | 1.37 (1.21–1.54) | 1.19 (1.11–1.27) | 0.882 |
| 2nd tertile | 1.66 (1.15–2.39) | 1.42 (1.13–1.79) | 1.20 (1.09–1.32) | ||
| 3rd tertile | 1.59 (1.11–2.27) | 1.48 (1.15–1.92) | 1.24 (1.10–1.40) | ||
| All‐cause death | 1st tertile | 2.91 (2.76–3.08) | 1.95 (1.87–2.04) | 1.46 (1.42–1.50) | <0.001 |
| 2nd tertile | 2.95 (2.61–3.34) | 2.37 (2.18–2.57) | 1.74 (1.67–1.81) | ||
| 3rd tertile | 2.50 (2.19–2.84) | 1.97 (1.78–2.17) | 1.88 (1.79–1.97) | ||
Adjusted for age, sex, smoking status, alcohol consumption, physical activity and income, fasting blood glucose, total cholesterol, systolic blood pressure, estimated glomerular filtration rate, hypertension, diabetes mellitus, and dyslipidaemia.
a
Comparison with the normal‐weight group as the reference group.
b
<75 cm in men, <68 cm in women.
c
75–79 cm in men, 68–72 cm in women.
d
≥80 cm in men, ≥73 cm in women.