Table 1.

General Characteristic Comparison Between the Two Groups (x ± s), (n), and [n (%)]

Groups	Cases	Age	Gender		Types of Lesions			Course of Disease
			M	F	Papules	Pustules	Cysts	>1 Year	<1 Year
Observation group	30	16.40±1.28	3	27	11	8	2	18	12
Control group	30	16.60±1.33	2	28	10	7	3	16	14
χ2/t		0.595	0.218		0.290			0.271
P		0.554	0.640		0.865			0.602