TABLE 2

Cerebral Palsy Rates According to Gestational Age, Infant Gender, and Plurality

No.Proportion With Cerebral Palsy, %P
Total19548.2
Gestational age at birth<.001
    24–25 wk6219.4
    26 wk8222.0
    27 wk14612.3
    28 wk19111.0
    29 wk1968.2
    30 wk3158.3
    31 wk4246.8
    32 wk5384.4
Infant gender.10
    Male10189.2
    Female9367.1
Plurality.35
    Singletons13398.2
    Twins5298.9
    Triplets and quadruplets864.4