TABLE 4.

Sensitivity, Specificity, PPV, and NPV of Pass and Fail ASQ Scores at Age 3, 4 or 5 Years Predicting At-Risk or Impaired BASC-II Adaptive Skills Scores at Age 6 Years

ASQ Pass or Fail	Sensitivity	Specificity	PPV	NPV
ASQ communication, 3 y	48	95	81	82
ASQ communication, 4 y	51	94	77	83
ASQ communication, 5 y	36	95	76	79
ASQ gross motor, 3 y	46	79	48	78
ASQ gross motor, 4 y	42	86	54	80
ASQ gross motor, 5 y	38	84	49	77
ASQ fine motor, 3 y	46	79	48	78
ASQ fine motor, 4 y	68	72	48	85
ASQ fine motor, 5 y	63	80	54	85
ASQ problem-solving, 3 y	46	90	66	80
ASQ problem-solving, 4 y	47	94	75	83
ASQ problem-solving, 5 y	43	97	84	81
ASQ personal-social, 3 y	35	94	70	78
ASQ personal-social, 4 y	22	99	93	77
ASQ personal-social, 5 y	34	96	78	79

The sensitivity is the hit rate percent at risk or impaired at age 6 who were impaired (fail) at age 3, 4, or 5 years. The specificity is the percent not impaired at age 6 who were not impaired (pass) at age 3, 4, or 5 years. The PPV is the precision percent fail at 3, 4, or 5 years who will be at risk or impaired at age 6. The NPV is the percent not impaired (pass) at 14 months or 3, 4, or 5 years who will remain not impaired at age 6.