Anthropometric indices as predictors of hypertension among men and women aged 40–69 years in the Korean population: the Korean Genome and Epidemiology Study

Table 3 The area under the ROC curve (AROC) and cut-off points for anthropometric indices to predict the hypertension

Anthropometric index	AROC (95% CI)	Cut-off point	Sensitivity (%)	Specificity (%)	Youden index (95% CI)^a)
*Men*
BMI (kg/m²)	0.58 (0.56 ~ 0.60)	23.59	66.15	47.42	0.14 (0.10 ~ 0.20)
WC (cm)	0.62 (0.60 ~ 0.64)***	83.33	59.90	57.91	0.18 (0.14 ~ 0.24)
WHR	0.62 (0.60 ~ 0.64)**	0.88	67.97	49.66	0.18 (0.14 ~ 0.24)
WHtR	0.62 (0.60 ~ 0.64)***	0.49	69.27	48.91	0.18 (0.15 ~ 0.24)
*Women*
BMI (kg/m²)	0.57 (0.55 ~ 0.59)	25.63	42.78	71.21	0.14 (0.10 ~ 0.20)
WC (cm)	0.66 (0.64 ~ 0.68)***	80.37	66.04	60.45	0.26 (0.22 ~ 0.32)
WHR	0.68 (0.66 ~ 0.70)***	0.86	71.12	57.94	0.29 (0.25 ~ 0.35)
WHtR	0.68 (0.66 ~ 0.70)***	0.51	75.13	53.18	0.28 (0.24 ~ 0.33)

CI, confidence interval; BMI, body mass index; WC, waist circumference; WHR, waist-to-hip ratio; WHtR, waist-to-height-ratio.
^a)95% confidence intervals of Youden index were based on 10,000 bootstrap samples.
**P <0.01, ***P <0.001 vs BMI.

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