Table 4.

Univariate analysis of predictive factors

	OSCC	Controls	p	OR (95% CI)
Age			0.002	2.26 (1.35–3.79)
<45	29	52
≧45	141	112
Gender			1.000	0.98 (0.63–1.53)
Male	107	104
Female	63	60
1Ga			0.294	1.29 (0.84–2.00)
-	77	64
+	93	100
2Gb			0.016	2.39 (1.21–4.72)
-	14	29
+	156	135

a: 1G- denotes 2G/2G, and 1G+ denotes 1G/1G or 1G/2G. b: 2G- denotes 1G/1G, and 2G+ denotes 2G/2G or 1G/2G.

Data were analyzed by Fisher's exact test. The odds ratio and 95% CI were calculated.