Table 2.

Factors associated with knowledge about risk factors for oral cancer

Variable	Knowledge about risk factors			P value
	Don’t know the two main risk factors (%)	Know one of the two main risk factors (%)	Know the two main risk factors (%)
Age
>40 years	29.2	39.1	31.5	0.85
<40 years	28.7	40.3	31.0
Gender
Male	33.2	43.9	22.9	0.000*
Female	24.2	43.8	32.0
Education
Less than university	31.4	44.4	24.2	0.002*
University	26.0	43.4	30.6
Smoking
Yes	34.4	43.6	21.9	0.000*
No	24.9	43.9	31.2
Alcohol use
Yes	27.8	61.9	10.3	0.000*
No	28.1	42.2	29.6

^*Indicates statistical significance at P <0.05.