Table 1. Baseline characteristics.

Characteristics	N (%) or mean ± SD
Gender
Male	4 (18.2)
Female	18 (81.8)
Age (years)	29.68±3.75
Duration of acne scars (years)	8.8±3.4
Side of picosecond laser
Left	13 (59.1)
Right	9 (40.9)
Fitzpatrick skin type
III	0
IV	22 (100.0)

Note: SD, standard deviation.