Characteristic

n = 147

Current age in years, mean (SD)

24.4 (5.26)

Gender, n (%)

 Male

 Female

49 (33.3)

98 (66.7)

Age at onset in years, mean (SD)

16.4 (1.58)

Age at initial treatment in years, mean (SD)

19.4 (2.11)

Acne severity, n (%)

 Mild

 Moderate

 Severe

 Very severe

40 (27.2)

78 (53.1)

18 (12.2)

11 (7.5)

Acne scar prevalence, n (%)

124 (84.4)

Acne scars classification, n (%)

 Mini-scars

 Mini-scars + Atrophic scars

 Atrophic scars

 Hypertrophic scars

30 (24.2)

71 (57.3)

10 (8.1)

13 (10.5)