Table 2.

Distribution of clinical features, etiology, and residents according to age groups

Age group	Clinical feature		Etiology		Residents
	Sessile	Pedunculated	Local	Systemic	Rural	Urban
10-19	3	0	3	0	2	1
20-29	4	2	5	1	4	2
30-39	6	3	5	4	6	3
40-49	3	2	4	1	2	3
50-59	2	1	3	0	1	2
60-69	2	0	2	0	1	1
Total	20	8	22	6	16	12