Table 1.
Baseline demographic characteristics, clinical data, and smoking history
| CISS (n=16) | CISNS (n=17) | HS (n=13) | HNS (n=14) | P | |
|---|---|---|---|---|---|
| Age (years) | 34.3±8.9 | 29.7±6.9 | 33.7±7.4 | 29.8±7.9 | 0.226 |
| Sex (Female/male), n | 8/8 | 13/4 | 6/7 | 10/4 | 0.223 |
| Pack-year | 9.3±10.1 | - | 7.7±4.7 | - | 0.904 |
| Cigarettes per day | 14.3±10.6 | - | 12.9±6.6 | - | 0.760 |
| Duration of smoking (years) | 11.6±8.5 | - | 12.6±8.8 | - | 0.680 |
| Age at onset of smoking (years) | 20.6±5.4 | - | 21.0±5.8 | - | 0.716 |
| Time lapse from clinical episode (months) | 10.8±16.5 | 9.2±7.0 | - | - | 0.313 |
| EDSS | 0.06 | 0.18 | - | - | 0.600 |
Data are presented as mean±SD, unless otherwise noted.
CISS, smoker patients with clinically isolated syndrome; CISNS, nonsmoker patients with clinically isolated syndrome; HS, smoker healthy controls; HNS, nonsmoker healthy controls; EDSS, expanded disability status scale.