Table 2.
Test characteristics by week.
| NP test/test version | Week 0 (N =126) | Week 24 (N =84) | Week 48 (N =76) | Week 96 (N =48) |
|---|---|---|---|---|
| Wechsler test version | ||||
| BSID-II | 26 (21%) | 16 (19%) | 10 (13%) | 2 (4%) |
| WPPSI-R | 32 (25%) | 17 (20%) | 17 (22%) | 9 (19%) |
| WISC-III | 68 (54%) | 51 (61%) | 49 (64%) | 37 (77%) |
| Full scale IQ | ||||
| Mean (SD) | 80.4 (15.9) | 83.3 (15.3) | 85.7 (14.2) | 90.0 (14.7) |
| Median (Q1, Q3) | 82.5 (71.0, 92.0) | 85.0 (75.0, 92.5) | 86.0 (77.5, 96.0) | 89.0 (81.0, 103.0) |
| Performance IQa | ||||
| Mean (SD) | 85.4 (15.5) | 89.9 (16.4) | 93.7 (13.8) | 95.5 (15.8) |
| Median (Q1, Q3) | 87.0 (77.0, 96.5) | 90 (81.0, 102.0) | 94.0 (87.0, 103.0) | 96.0 (82.0, 106.0) |
| Verbal IQa | ||||
| Mean (SD) | 82.9 (13.1) | 84.0 (12.0) | 86.0 (12.0) | 87.3 (14.5) |
| Median (Q1, Q3) | 83.0 (75.0, 91.5) | 84.0 (78.0, 91.0) | 85.0 (78.0, 94.0) | 86.0 (78.0, 99.0) |
a
Performance and verbal IQ scores not available for children who had BSID-II evaluations.