Table 2.
| BSID-III Score, Mean (SD) | ||
|---|---|---|
| BSID-III Domain | Children With DP (n=216) |
Children Without DP (n=162) |
| Cognitivec | 98.8 (11.9) | 105.1 (11.10) |
| Languagec | 98.6 (15.7) | 106.2 (14.6) |
| Receptive language | 9.7 (3.4) | 11.6 (3.2) |
| Expressive language | 9.7 (2.6) | 10.5 (2.5) |
| Motorc | 98.4 (9.9) | 103.9 (9.7) |
| Fine motor | 10.4 (2.2) | 11.4 (2.1) |
| Gross motor | 9.0 (1.8) | 9.8 (1.9) |
| Adaptive behaviord | 97.4 (13.3) | 101.2 (12.4) |
Abbreviations: BSID-III, Bayley Scales of Infant and Toddler Development, Third Edition; DP, deformational plagiocephaly.
Standardized scores for the cognitive, language, motor, and adaptive behavior composite scales have a normative mean (SD) of 100 (15). Scaled scores for the receptive language, expressive language, fine motor, and gross motor subscales have a normative mean (SD) of 10 (3).
Data were excluded for 2 children in the DP group who did not have evidence of DP based on physician ratings of 3-dimensional head photographs and 69 children in the non-DP group who had mild or greater posterior skull flattening or asymmetry. Data were also excluded for 7 children with DP and 2 without DP who were diagnosed as having medical conditions with developmental implications after study enrollment.
Scores rated as invalid by the examiner were excluded from analyses. At time 2, cognitive scores were rated as invalid for 1 child with DP, language scores for 2 children with DP, and motor scores for 2 children with DP.
Adaptive behavior data were missing for 23 children with DP and 13 without DP at time 2. Another 2 children with DP and 2 without DP were not seen for a clinic assessment, and only parent-reported adaptive behavior data were available.