BMC Cardiovascular Disorders

Table 3 Sex and age-specific areas under the receiver operating characteristic curves in the study population aged 20–80 years in Shaanxi Province, China, 2014

From: Neck circumference as an indicator of elevated blood pressure independent from body composition: implications from the China nation health survey (CNHS)

	NC			WC			WHR			BMI
	AUC	95% CI		AUC	95% CI		AUC	95% CI		AUC	95% CI
Male	0.633	0.604	0.662	0.662	0.634	0.690	0.655	0.627	0.683	0.669	0.641	0.696
20–39	0.662	0.585	0.739	0.669	0.597	0.742	0.643	0.570	0.716	0.715	0.644	0.787
40–49	0.714	0.655	0.774	0.665	0.602	0.727	0.624	0.560	0.688	0.686	0.627	0.744
50–59	0.668	0.614	0.722	0.658	0.604	0.713	0.634	0.578	0.690	0.685	0.632	0.738
60–80	0.667	0.613	0.721	0.663	0.610	0.717	0.635	0.580	0.690	0.675	0.622	0.728
Female	0.663	0.637	0.689	0.716	0.692	0.740	0.715	0.691	0.739	0.693	0.668	0.718
20–39	0.645	0.516	0.775	0.621	0.482	0.761	0.583	0.444	0.722	0.601	0.454	0.749
40–49	0.648	0.578	0.718	0.650	0.583	0.716	0.654	0.589	0.719	0.653	0.587	0.718
50–59	0.658	0.613	0.703	0.642	0.596	0.687	0.620	0.575	0.665	0.637	0.591	0.683
60–80	0.603	0.551	0.655	0.597	0.545	0.649	0.568	0.516	0.621	0.605	0.553	0.657

AUC Areas under the receiver operating characteristic curves, NC Neck circumference, WC Waist circumference, WHR waist-hip ratio, BMI Body mass index, CI confidence interval

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