Table 1.

Sample characteristics.

Characteristic	Group				P value
	Case		Control
	N = 20		N = 40
	N	%	N	%
Gender
Female	9	45.0	27	67.5	0.094b
Male	11	55.0	13	32.5
Tobacco consumption
Yes	15	75.0	20	50.0	0.064b
No	5	25.0	20	50.0
Drinker
Yes	8	40.0	3	7.5	0.002a
No	12	60.0	37	92.5
Tobacco consumption and drinker
Yes	8	53.3	3	15.0	0.016a
No	7	46.7	17	85.0
Oral hygiene
Good	1	5.0	5	10.3	0.493b
Poor	19	95.0	35	89.7
Mouthwash use
Yes	5	25.0	5	12.5	0.221b
No	15	75.0	35	87.5

^aSignificant; ^bnonsignificant.