TABLE 3.

Sensitivity, Specificity, PPV, and NPV of At-Risk and Impaired Scores at the Age of 14 Months or 3, 4, or 5 Years Predicting At-Risk or Impaired BASC-II Adaptive Skills Scores at the Age of 6 Years

At Risk or Impaired	Sensitivity	Specificity	PPV	NPV
BSID-II MDI, 14 mo	54	73	44	80
BSID-II PDI, 14 mo	79	45	36	85
BASC-2 Behavior Symptoms Index, 3 y	26	98	70	89
BASC-2 Behavior Symptoms Index, 4 y	32	91	35	90
BASC-2 Behavior Symptoms Index, 5 y	41	94	54	90
BASC-2 externalizing symptoms, 3 y	22	96	45	90
BASC-2 externalizing symptoms, 4 y	30	93	35	92
BASC-2 externalizing symptoms, 5 y	36	91	35	91
BASC-2 internalizing symptoms, 3 y	19	84	10	92
BASC-2 internalizing symptoms, 4 y	37	85	18	94
BASC-2 internalizing symptoms, 5 y	41	89	24	94
BASC-2 Adaptive Skills Index, 3 y	37	98	91	79
BASC-2 Adaptive Skills Index, 4 y	48	97	84	83
BASC-2 Adaptive Skills Index, 5 y	55	96	84	85

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