Population characteristics
| Characteristics | Patients (n=60) |
| Sex ratio (female:male) | 7.5:1 |
| Ancestry | Afro-Caribbean: 59 (98), Caucasian: 1 (2) |
| Residence | Martinique: 35; Foreign: 25 (Guadeloupe: 16, French Guyana: 7, Dominique and Saint Lucia: 2) |
| Final diagnosis | NMO-SD (criteria 2015): 55 (92), including anti-AQP4+: 40 (66), anti-MOG: 1 (2), LETM: 2 (3), bilateral severe ON: 3 (5) |
| Duration of disease, years | 5.7 (6.6) |
| Anti-AQP4 | 40 (66) and 2 (3) unknown |
| Included attacks | 115, including 67 SC and 48 ON attacks* |
| NMO-SD (2015) | 110 (96) |
*n=9 (8%) attacks were optico-spinals.
AQP4, aquaporin-4; LETM, longitudinal extensive transverse myelitis; MOG, myelin oligodendrocyte glycoprotein; NMO-SD, neuromyelitis optica spectrum disorder; ON, optic neuritis; SC, spinal cord.