Table III.
Infant and toddler developmental testing
| TNA | NNA | Persistent neurological abnormalities |
TNA vs NNA | TNA vs persistent neurological abnormalities |
|
|---|---|---|---|---|---|
| (n=17) | (n=89) | (n=18) | Median difference (95% CI)a |
Median difference (95% CI)a |
|
| 9mo Bayley II | |||||
| PDI median (25th–75th centile) | 59 (56–71) | 89 (79–97) | 54 (50–70) | −24 (−31 to −17)b | 6 (0 to 14) |
| MDI median (25th–75th centile) | 92 (81–94) | 98 (94–101) | 83 (55–89) | −6 (−11 to −2)b | 8 (2 to 21)b |
| 20mo Bayley II | |||||
| PDI median (25th–75th centile) | 57 (50–81) | 86 (75–93) | 50 (50–55) | −20 (−31 to −8)b | 5 (0 to 24) |
| MDI median (25th–75th centile) | 71 (54–92) | 79 (69–87) | 57 (50–74) | −8 (−18 to 4) | 6 (−1 to 26) |
Standardized mean score is 100 and SD 15 for a normative sample.15
a
Estimated Hodges–Lehman median difference. Owing to the asymmetrical distribution for the transient neurological abnormalities (TNA) and persistent neurological abnormalities groups, the estimated medians will not be identical to calculated medians.
b
95% confidence intervals (95% CI) not including zero are significant.
NNA, neurologically normal assessment; PDI, Psychomotor Development Index; MDI, Mental Development Index.