Relative fat mass as a predictor of gallstones: insights from national health and nutrition examination survey data

Table 4 The AUC for each index to discriminate gallbladder stone

	AUC	95%CI	Cutoff value	Sensitivity	Specificity	PPV	NPV	P for difference in AUC
RFM	0.696	0.682–0.711	42.7	0.543	0.729	0.204	0.933	Reference
BMI	0.640	0.625–0.655	30.2	0.599	0.611	0.153	0.928	< 0.001
WC	0.642	0.627–0.657	101.5	0.662	0.570	0.153	0.935	< 0.001
WHtR	0.674	0.660–0.689	0.622	0.651	0.616	0.166	0.938	< 0.001
WWI	0.664	0.650–0.679	11.3	0.645	0.591	0.157	0.934	< 0.001
BRI	0.674	0.660–0.689	5.93	0.651	0.616	0.834	0.006	< 0.001

RFM, relative fat mass; BMI, body mass index; WC, waist circumference; WHtR, waist-to-height ratio; WWI, weight-adjusted waist circumference index; BRI, body roundness index; PPV, positive predictive value; NPV, negative predictive value

ISSN: 1476-511X