Table 2.
Patient characteristics (smoking vs non-smoking CIS patients)
| Smoking CIS patients (n = 79) | Non-smoking CIS patients (n = 171) | p value | |
|---|---|---|---|
| Female sex, no. (%) | 58 (73.4) | 131 (76.6) | 0.59 |
| Age, mean (SD), years | 33.9 (7.7) | 33.5 (8.5) | 0.67 |
| Follow-up time, mean (SD), months | 60.7 (30.7) | 57.0 (38.1) | 0.45 |
| Type of clinical onset, no. (%) | |||
| Optic nerve | 25 (31.6) | 63 (36.8) | 0.42 |
| Spinal cord | 29 (36.7) | 61 (35.7) | 0.87 |
| Other localization | 25 (31.6) | 47 (26.3) | 0.50 |
| OCB, (> 1 band), (%) | 43 (75.4) | 70 (72.9) | 0.73 |
| ≥ 9 lesions on T2-weighted images, no. (%) | 33 (42.3) | 63 (36.8) | 0.41 |
| DMT at time of CIS, no. (%) | 24 (30.4) | 33 (19.3) | 0.05 |
| CDMS, no. (%) | 53 (67.1) | 61 (35.7) | < 0.01 |
| SPMS, no. (%) | 3 (3.8) | 5 (2.9) | 0.72 |
| Alcohol use, no. of patients (%) | 55 (69.6) | 79 (46.2) | < 0.01 |
CIS clinically isolated syndrome, OCB oligoclonal bands