Table 1.

Demographical features of cases and controls

Variables	Patients without isotretinoin		Patients with isotretinoin		P
	No.	%	No.	%
Gender
Female	18	43.2	17	42.5	1.000
Male	23	57.5	23	56.1
Age
Mean (year) ± SD	38.969±1.956		39.647±1.988		0.864
19-25 years	8	19.5	7	17.5
26-45 years	25	61	23	57.5
46-65 years	8	19.5	10	25
Duration of disease
2-6 months	17	41.5	18	45	0.668
6 months-1 year	18	43.9	14	35
More than 1 year	6	14.6	8	20