Table 1.
Clinical characteristics of groups
| Variable | NIND | OMS | OIND |
|---|---|---|---|
| n | 100 | 312 | 23 |
| Gender n (%) | |||
| Male | 51 (51) | 140 (45) | 9 (39) |
| Female | 49 (49) | 172 (55) | 14 (61) |
| Median age (years) (IQR) | 7·1 (2·6, 12) | 2·7 (1·9, 4·0) | 5·2 (3·2, 10) |
| Age range (years) | 0·47–18 | 0·9–7 | 0·2–17 |
| Age category n (%) | |||
| Infants | 14 (14) | 25 (8) | 2 (9) |
| Toddlers | 11 (11) | 150 (48) | 4 (17) |
| Preschool | 14 (14) | 79 (25) | 7 (30) |
| Older children | 61 (61) | 58 (17) | 10 (43) |
| Diagnosis n (%) | |||
| Ataxia | 20 (20) | ||
| Dev. delay | 12 (12) | ||
| Headache | 21 (21) | ||
| Movement dis. | 15 (15) | ||
| Seizures | 8 (8) | ||
| Eye mov. dis. | 4 (4) | ||
| Miscellaneous | 20 (20) | ||
| Inflam. ataxia | 3 (13) | ||
| CNS infection | 3 (13) | ||
| Demyelinating dis. | 3 (13) | ||
| Inflam. epilepsy | 1 (4) | ||
| Mixed mov. dis. | 1 (4) | ||
| Neurolupus | 1 (4) | ||
| Neurol. dis., other | 7 (13) | ||
| Paraneo. dis., other | 1 (4) | ||
| OMS aetiology n (%) | |||
| No tumour | 156 (50) | ||
| Tumour | 156 (50) |
Dev. delay = developmental delay; mov. = movement; dis. = disorder; NIND = non‐inflammatory neurological disorders; OMS = opsoclonus–myoclonus syndrome; OIND = other inflammatory neurological disorders.