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Table 1 Outcome of treatment (severity of acne, IGA)

From: 577-nm high-power optically pumped semiconductor laser is safe and effective in the treatment of inflammatory acne: a prospective, single-center, split-face comparative study

 

Laser-treated side

Non-laser-treated side

p-value

n (%)

n (%)

Clear (100%)

15 (30%)

8 (16%)

0.002*

Almost clear (75%–< 100%)

29 (58%)

11 (22%)

 

Marked improvement (50–< 75%)

5 (10%)

22 (44%)

 

Moderate improvement (25–< 50%)

0 (0%)

7 (14%)

 

Slight improvement (1–< 25%)

0 (0%)

1 (2%)

 

No change (0%)

1 (2%)

1 (2%)

 
  1. Chi-square test was used
  2. Data expressed as n (%)
  3. P. value < 0.05 is significant