2.7. Analysis.

Comparison 2: Topical azelaic acid versus placebo, Outcome 7: Change in lesion counts (number of lesions post‐intervention)

Change in lesion counts (number of lesions post‐intervention)
Study	Subgroup	Topical azelaic acid	Placebo	P value
short term
Pazoki‐Toroudi 2010	comedones	mean ± SD: 6.12 ± 0.39	mean ± SD: 30.02 ± 3.0, n = 20	< 0.001
Pazoki‐Toroudi 2010	papules	mean ± SD: 14.02 ± 0.78	mean ± SD: 22.22 ± 1.64, n = 20	< 0.001
Pazoki‐Toroudi 2010	pustules	mean ± SD: 5.9 ± 0.61	mean ± SD: 12.22 ± 1.04, n = 20	< 0.001