Table 4.
Univariate and multivariate regression analysis of the relationship between obesity category, defined using a combination of BMI and WC, and the risk of hypertension, classified according to sex
| Variable | n | Incidence of hypertension, n (%) | Crude model |
Multivariate analysis |
||
|---|---|---|---|---|---|---|
| OR (95% CI) | p value | OR (95% CI) | p value | |||
| Men | ||||||
| G1 | 434 | 56 (12.9) | 1 | 1 | ||
| G2 | 128 | 26 (20.3) | 1.72 (1.03–2.88) | 0.039 | 1.47 (0.84–2.55) | 0.177 |
| G3 | 42 | 15 (35.7) | 3.75 (1.88–7.48) | <0.001 | 3.10 (1.48–6.50) | 0.003 |
| p for trend | <0.001 | 0.003 | ||||
| Women | ||||||
| G1 | 1,043 | 104 (10.0) | 1 | 1 | ||
| G2 | 189 | 32 (16.9) | 1.84 (1.20–2.83) | 0.006 | 1.31 (0.82–2.09) | 0.265 |
| G3 | 91 | 22 (24.2) | 2.88 (1.71–4.85) | <0.001 | 2.51 (1.43–4.40) | 0.001 |
| p for trend | <0.001 | 0.002 | ||||
Men: G1 (BMI <30, WC <90 cm); G2 (BMI <30, WC ≥90 cm) or (BMI ≥30, WC <90 cm); G3 (BMI ≥30, WC ≥90 cm). Women: G1 (BMI <30, WC <85 cm); G2 (BMI <30, WC ≥85 cm) or (BMI ≥30, WC <85 cm); G3 (BMI ≥30, WC ≥85 cm). The data were adjusted for age, estimated glomerular filtration rate, current smoking, current drinking, diabetes, dyslipidemia, baseline systolic blood pressure, cardiovascular disease, antidiabetic drug use, and lipid-lowering drug use. WC, waist circumference; BMI, body mass index; OR, odds ratio; CI, confidence interval.