Table 4

Subgroup analyses of the association of obesity indices with HTN according to age and sex

	BMI			BF percentage			Waist circumference
	ORs	95% CI	P value	ORs	95% CI	P value	ORs	95% CI	P value
(A) Age≧65 years old (n=166)
Model 1*	1.09	0.99 to 1.20	0.06	1.04	1.00 to 1.08	0.04	1.03	1.00 to 1.06	0.08
Model 2†	1.10	1.00 to 1.21	0.05	1.05	1.00 to 1.11	0.0497	1.04	1.00 to 1.07	0.04
Model 3‡	1.11	1.00 to 1.22	0.047	1.06	1.01 to 1.12	0.03	1.04	1.00 to 1.08	0.04
(B) Male (n=140)
Model 1*	1.17	1.06 to 1.30	0.002	1.10	1.03 to 1.17	0.004	1.07	1.03 to 1.12	<0.001
Model 2†	1.08	1.03 to 1.12	<0.001	1.10	1.03 to 1.17	0.003	1.08	1.03 to 1.12	<0.001
Model 3‡	1.19	1.06 to 1.33	0.002	1.11	1.03 to 1.19	0.003	1.08	1.03 to 1.12	0.001
(C) Female (n=256)
Model 1*	1.14	1.05 to 1.23	0.001	1.06	1.02 to 1.11	0.004	1.05	1.02 to 1.09	0.001
Model 2†	1.14	1.05 to 1.23	0.002	1.06	1.02 to 1.11	0.01	1.05	1.01 to 1.08	0.004
Model 3‡	1.13	1.04 to 1.23	0.003	1.06	1.01 to 1.10	0.01	1.04	1.01 to 1.08	0.01

*Model 1: Unadjusted.
†Model 2: Multiple logistic regression adjusted for age and sex.
‡Model 3: Multiple logistic regression adjusted for factors in model two plus DM and hyperlipidemia.
BF, body fat; BMI, body mass index; DM, diabetes mellitus; HTN, hypertension.