TABLE 4

Bayley Scales of Infant Development Scores Among Children With or Without CP

All InfantsNo CPAny CPMild CPModerate CPSevere CP
n = 2113n = 1866 (88%)n = 247a (12%)n = 102 (41%)n = 99 (40%)n = 45 (18%)
Mean BSID III cognitive score ± SD (n)89.2 ± 15.4 (2052)91.4 ± 13.9 (1818)71.7 ± 15.0 (234)81.1 ± 13.3 (100)67.8 ± 12.6 (94)56.8 ± 6.3 (39)
Mean BSID III composite motor ± SD (n)87.7 ± 16.4 (2023)90.7 ± 13.7 (1793)64.1 ± 16.0 (230)76.7 ± 13.1 (99)57.1 ± 10.9 (91)48.2 ± 4.9 (39)
Mean GM scaled score ± SD (n)7.5 ± 2.8 (2003)7.9 ± 2.4 (1799)3.4 ± 2.5 (204)5.2 ± 2.4 (99)1.8 ± 1.1 (85)1.0 ± 0 (19)
Mean FM scaled score ± SD (n)8.6 ± 2.9 (2007)9.0 ± 2.7 (1805)5.5 ± 3.2 (202)7.1 ± 2.6 (99)4.2 ± 3.0 (83)2.5 ± 2.1 (19)
  • Infants with CP were significantly different from infants without CP for all four outcomes (P < 0.0001 for each; nonparametric Kruskal-Wallis Test). There are also significant differences across levels of CP for all four outcomes (P < 0.0001 for each; nonparametric Kruskal-Wallis Test). Pairwise comparisons between different levels of severity of CP (No CP, Mild CP, Moderate CP, and Severe CP) were significant with P < .0001 for all four outcomes; nonparametric Kruskal-Wallis Test.

  • a One infant with CP had missing data for severity.