Table 3.

Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of parent-reports for predicting weight classification with parent-reported BMI z-score.

	Parent-report overall (n = 55)			Parent-report ≤ 7d TG (n = 37)			Parent-report ≤ 7d TG + Direct (n = 24)
	NM (n%)	OW (n%)	OB (n%)	NM (n%)	OW (n%)	OB (n%)	NM (n%)	OW (n%)	OB (n%)
Sensitivitya	66	38	60	60	71	50	53	100	50
Specificityb	55	67	98	83	60	97	86	55	100
PPVc	72	26	75	88	29	67	90	31	100
NPVd	48	78	96	50	90	94	43	100	96
Accuracye	62	60	95	68	62	92	63	63	96

NM, normal weight; OW, overweight; OB, obese.

^aSensitivity = True Positives / (True Positives + False Negatives).

^bSpecificity = True Negatives / (True Negatives + False Positives).

^cPositive Predictive Value = True Positives / (True Positives + False Positives).

^dNegative Predictive Value = True Negatives / (True Negatives + False Negatives).

^eAccuracy = (True Positives + True Negatives) / Total “n.”