Comparison of early characteristics of participants followed-up 5–7 years after injury with those in whom follow-up was achieved or not achieved at 12–14 years
| Follow-up achieved (total=121) | Lost to follow-up (total=98) | |
| N (%) | N (%) | |
| Age at injury | ||
| ≤40 years | 71 (58.7) | 71 (72.5) |
| >40 years | 50 (41.3) | 27 (27.5) |
| Gender | ||
| Male | 100 (82.6) | 77 (78.6) |
| Female | 21 (17.4) | 21 (21.4) |
| Initial severity (GCS) | ||
| Mild | 77 (63.6) | 72 (73.5) |
| Moderate | 24 (19.8) | 17 (17.4) |
| Severe | 18 (14.9) | 7 (7.1) |
| Missing | 2 (1.7) | 2 (2.0) |
| Previous head injury | ||
| No | 63 (52.1) | 43 (43.9) |
| Yes | 40 (33.0) | 27 (27.5) |
| Missing | 18 (14.9) | 28 (28.6) |
| Previous physical limitations | ||
| No | 85 (70.2) | 64 (65.3) |
| Yes | 23 (19.0) | 16 (16.3) |
| Missing | 13 (10.7) | 18 (18.4) |
| GOSE† | ||
| Vegetative | 0 (0) | 0 (0) |
| Lower SD | 15 (12.4) | 10 (10.2) |
| Upper SD | 17 (14.0) | 10 (10.2) |
| Lower MD | 28 (23.1) | 21 (21.4) |
| Upper MD | 10 (8.3) | 6 (6.1) |
| Lower GR | 16 (13.2) | 11 (11.2) |
| Upper GR | 35 (28.9) | 40 (40.8) |
| Excessive alcohol use | ||
| No | 49 (50.0) | 55 (45.5) |
| Yes | 28 (28.6) | 51 (42.1) |
| Missing | 21 (20.4) | 15 (12.4) |
| Social deprivation rating* | ||
| Lower deprivation (≤7) | 67 (55.4) | 47 (48.0) |
| Higher deprivation (>7) | 40 (33.1) | 41 (41.8) |
| Missing | 14 (11.5) | 10 (10.2) |