Table 1 Gestational age-specific rates of cerebral palsy based on live births within a gestational age category and based on the number of fetuses at risk for cerebral palsy, Shiga Prefecture, Japan [6], 1977 to 1991.
From: Does the risk of cerebral palsy increase or decrease with increasing gestational age?
Gestational age (weeks) | Live births | Cases of cerebral palsy | Rate of cerebral palsy†| Fetuses at risk for cerebral palsy | Rate of cerebral palsy‡ |
|---|---|---|---|---|---|
<28 | 266 | 17 | 63.9 | 226,052 | 0.08 |
28–31 | 780 | 55 | 70.5 | 225,786 | 0.24 |
32–36 | 7,331 | 52 | 7.1 | 225,006 | 0.23 |
≥37 | 217,675 | 201 | 0.9 | 217,675 | 0.92 |
Total¶ | 226,052 | 325 | 1.4 | 226,052 | 1.44 |