Table 1.

Information related to recurrent aphthous ulceration experience among participants

Variable	Category	No.	%
History of aphthous ulcer	Yes	534	78.1
	No	150	21.9
Size of the ulcers	>1 cm	76	15.4
	< = 1 cm	418	84.6
Shape of the ulcer	Circular	330	65.7
	Non-circular	172	34.3
Number of ulcers	Single ulcer	254	49.2
	Multiple ulcers	262	50.8
Are the ulcers painful	Yes	482	91.6
	No	44	8.4
Interfere with eating or swallowing	Yes	408	81.9
	No	90	18.1
	Lip and inner cheek	288	55.0
site of the ulcers	Floor of the mouth	42	8.0
	Gingiva	96	18.3
	Tongue	98	18.7
	< 7 days	336	66.9
Duration of the ulcers	7-14 days	146	29.1
	> 14 days	20	4.0
Itching prior ulceration	Yes	190	37.5
	No	316	62.5
Any other family member suffering from recurrent aphthous ulcerations	Yes	408	66.4
	No	206	33.6