Cerebral palsy type by gestational age, severity and Z-score of birth weight-for-gestation
| Non-spastic | Spastic bilateral | Spastic unilateral | All types | |
|---|---|---|---|---|
| n cases (%) | ||||
| Gestation (weeks) | ||||
| <37 | 13 (28.3) | 240 (47.8) | 77 (28.7) | 330 (40.4) |
| ≥37 | 33 (71.7) | 262 (52.2) | 191 (71.3) | 486 (59.6) |
| All | 46 (100) | 502 (100) | 268 (100) | 806 (100) |
| Severity using LAS | ||||
| 1991–1995 | ||||
| 30–69% | 16 (62.6) | 138 (53.7) | 94 (68.2) | 247 (59.0) |
| ≥70% | 7 (29.0) | 105 (41.1) | 5 (4.0) | 118 (28.2) |
| All | 25 (100) | 256 (100) | 138 (100) | 419 (100) |
| 1996–2000 | ||||
| 30-69% | 15 (71.4) | 130 (52.8) | 79 (60.6) | 224 (56.4) |
| ≥70% | 5 (23.8) | 89 (36.1) | 6 (4.3) | 99 (25.0) |
| All | 21 (100) | 246 (100) | 130 (100) | 397 (100) |
| Severity using IQ and/or walking ability | ||||
| 1991–1995 | ||||
| Severe* | 17 (68.0) | 162 (63.3) | 16 (11.6) | 195 (46.5) |
| 1996–2000 | ||||
| Severe* | 12 (57.1) | 138 (56.1) | 20 (15.4) | 170 (42.8) |
| Z-score of birth weight-for-gestation | ||||
| Percentage with Z-score <0 (<50percentile) | 57 | 58 | 58 | 58 |
| Percentage with Z-score <−0.67 (<25percentile) | 28 | 31 | 35 | 33 |
↵* The ‘severe’ group comprised children with IQ<50 or inability to walk without aids, or both.
LAS, Lifestyle Assessment Score.