Diagnostic accuracy of different body weight and height-based definitions of childhood obesity in identifying overfat among Chinese children and adolescents: a cross-sectional study

Table 3 Diagnostic indices of different definitions for childhood obesity/overweight in screening excess %BF

	References	SE		SP		YI		PPV		LR+
	References	Boys	Girls	Boys	Girls	Boys	Girls	Boys	Girls	Boys	Girls
OB	HK-1993	0.761 (188/247)	0.588 (187/318)	0.862 (648/752)	0.973 (603/620)	0.623	0.561	0.644	0.917	5.504	21.447
	WHO-BMI	0.502 (139/277)	0.200 (69/345)	0.971 (832/858)	0.998 (653/654)	0.473	0.199	0.848	0.986	17.201	130.800
	CDC-BMI	0.448 (124/277)	0.191 (66/345)	0.980 (840/858)	0.998 (653/654)	0.428	0.190	0.978	0.985	22.567	125.113
	IOTF-BMI	0.325 (90/277)	0.128 (44/345)	0.993 (851/858)	0.998 (653/654)	0.318	0.126	0.938	0.978	46.408	83.409
	WGOC-BMI	0.473 (131/277)	0.278 (96/345)	0.977 (837/858)	0.998 (653/654)	0.450	0.277	0.868	0.990	20.265	181.900
OW & OB	WHO-BMI	0.845 (234/277)	0.542 (187/345)	0.856 (734/858)	0.945 (618/654)	0.678	0.487	0.619	0.839	5.027	9.847
	CDC-BMI	0.762 (211/277)	0.493 (170/345)	0.883 (757/858)	0.966 (632/654)	0.645	0.459	0.670	0.885	6.528	14.648
	IOTF-BMI	0.765 (212/277)	0.504 (174/345)	0.878 (752/858)	0.961 (628/654)	0.643	0.464	0.669	0.870	6.247	12.686
	WGOC-BMI	0.801 (222/277)	0.548 (189/345)	0.855 (733/858)	0.956 (625/654)	0.657	0.503	0.642	0.867	5.539	12.354

OB obesity, OB & OW overweight and obesity, HK 1993 1993 Hong Kong reference, IOTF-BMI International Obesity Task Force BMI reference, CDC-BMI US Centers for Disease Control and Prevention BMI reference, WHO-BMI World Health Organization reference, WGOC-BMI Working Group on Obesity in China BMI reference, SE sensitivity, SP specificity, YI Youden’s index, PPV positive predictive values, LR+ likelihood ratio for positive test results

ISSN: 1471-2458