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Mean change in acne lesions at baseline and eight weeks post-treatment
| LESION TYPE | BASELINE, MEAN (SD) | POST-TREATMENT WEEK 8, MEAN (SD) | SIGNIFICANCEA |
|---|---|---|---|
| Closed comedones | 38.5 (26.1) | 21.4 (15.9) | 0.0007 |
| Open comedones | 9.5 (11.0) | 6.4 (10.3) | 0.752 |
| Papules | 28.9 (14.7) | 7.2 (4.8) | <0.0001 |
| Pustules | 6.5 (4.0) | 0.5 (0.8) | <0.0001 |
| Nodules or cysts | 1.0 (1.6) | 0.1 (0.5) | 0.00129 |
Paired t-test from Lee et al 200710 SD: standard deviation
