Baseline characteristics of the patients with acne
| Characteristics | Patients with acne (n=227) |
| Age (years) | |
| <25 | 156 (68.7) |
| >25 | 71 (31.3) |
| Gender | |
| Male | 93 (41.0) |
| Female | 134 (59.0) |
| Age at onset (years) | |
| <15 | 65 (28.6) |
| 15–25 | 143 (63.0) |
| >25 | 19 (8.4) |
| Duration of disease (years) | |
| <2 | 46 (20.3) |
| >2 | 181 (79.7) |
| Disease severity | |
| Mild | 33 (14.5) |
| Moderate | 138 (60.8) |
| Severe | 56 (24.7) |
| Antibiotic use | 93 (41.0) |
| Topical use | 26 (11.5) |
| Oral administration | 67 (29.5) |
| Non-antibiotic use | 53 (23.3) |
| Without previous therapy | 81 (35.7) |
Data were expressed as n (%).