Table VI.

Optimal cut-off points of waist to height ratio for identifying abdominal obesity, overweight, and obesity in childhood.

Abdominal Obesity
Waist to Height Ratio (WHtR)	All students (n=2718)	Girls (n=1251)	Boys (n=1467)	Children (n=1229)	Adolescent (n=1489)
Cut-off points	0.4741	0.4697	0.4762	0.4959	0.4645
Area under Curve (AUC)	0.920	0.907	0.940	0.926	0.964
Sensitivity	89.89	90.05	92.58	89.51	93.19
Specificity	77.44	74.76	78.97	82.61	87.93
P	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
Overweight/Obesity
Waist to Height ratio (WHtR)	All students (n=2718)	Girls (n=1251)	Boys (n=1467)	Children (n=1229)	Adolescent (n=1489)
Cut-off points	0.4769/ 0.5077	0.4766/ 0.5378	0.4767/ 0.5077	0.4922/ 0.5133	0.4693/ 0.5084
Area under Curve (AUC)	0.819/0.928	0.833/0.907	0.816/0.942	0.800/0.930	0.882/0.940
Sensitivity	79.49/92.17	86.39/80.00	76.60/95.71	78.83/92.00	80.17/91.11
Specificity	70.47/82.98	64.91/93.37	73.50/83.82	69.88/81.23	81.16/88.71
P	<0.0001/ <0.0001	<0.0001/ <0.0001	<0.0001/ <0.0001	<0.0001/ <0.0001	<0.0001/ <0.0001