Table 2. Demographic traits of S. aureus nasal carriers in the MS patients group.
| Nasal carriage of S. aureus, no. (%) | |||||||
|---|---|---|---|---|---|---|---|
| Demographic traits | Positive N=63 | Negative N=87 | Total N=150 | OR | 95%CI | p-value | |
| Age (years) | 20-30 | 26 (37.1) | 44 (62.9) | 70 | |||
| 31-40 | 21 (42.0) | 29 (58.0) | 50 | ||||
| 41-50 | 12 (54.5) | 10 (45.5) | 22 | – | – | 0.714 | |
| 51-60 | 2 (40.0) | 3 (60.0) | 5 | ||||
| 61-70 | 2 (66.7) | 1 (33.3) | 3 | ||||
| Sex | Male | 27 (53.0) | 24 (47.0) | 51 | 0.825 | 0.417-1.633 | 0.604 |
| Female | 36 (36.4) | 63 (63.6) | 99 | ||||
| Disease duration (years since diagnosis) | 1-5 | 29 (42.0) | 40 (58.0) | 69 | |||
| 6-10 | 22 (46.8) | 25 (53.2) | 47 | ||||
| 11-15 | 7 (35.0) | 13 (65.0) | 20 | – | – | 0.860 | |
| 16-20 | 3 (42.8) | 4 (57.2) | 7 | ||||
| >20 | 2 (28.6) | 5 (71.4) | 7 | ||||
| Relapse at the time of sampling | Yes | 28 (41.2) | 40 (58.8) | 68 | 0.917 | 0.479-1.759 | 0.869 |
| No | 35 (42.7) | 47 57.3) | 82 | ||||
MS – multiple sclerosis; OR – odds ratio; 95%CI – 95% confidence interval.