Table 1 Severity category according to functional disability.
| Functional category | Severity level | Whole cohort | Survivors aged >2 years |
|---|---|---|---|
| n (%) | n (%) | ||
| Cognition | IQ ⩾50 | 1084 (66%) | 1084 (68%) |
| IQ <50 | 563 (34%) | 517 (32%) | |
| Mobility | Walks, may require aids | 1177 (72%) | 1177 (73%) |
| Self‐operated wheelchair | 86 (5%) | 86 (5%) | |
| Other wheelchair | 384 (23%) | 343 (22%) | |
| Manual | Able to feed and dress | 1265 (77%) | 1262 (79%) |
| Unable to feed and dress | 374 (23%) | 336 (21%) | |
| Vision | None to moderate disability | 1283 (77%) | 1279 (79%) |
| 6/60 or worse in better eye, functionally blind | 123 (7%) | 114 (7%) | |
| Possible disability, unable to assess | 266 (16%) | 233 (14%) | |
| Hearing | None or moderate unilateral disability | 1538 (88%) | 1531 (90%) |
| Bilateral or severe unilateral disability | 81 (5%) | 81 (5%) | |
| Stills to sound or unresponsive | 53 (7%) | 32 (5%) |