Table 3.

Multivariable Analysis^* of Factors Associated with HPV Infection Using Stepwise Backward Logistic Regression

Variables	Adjusted OR(95% CI)	p-value
Educational level
Primary school	Reference
Secondary / high school	0.13[0.03-0.62]	0.01
College / university	1.21[0.31-4.68]	0.77
Graduate school	0.00[0.00-]	-
Illiterate	0.30[0.03-3.05]	0.31
Working status
Employed	Reference
Unemployed	4.94[1.58-15.40]	0.006

OR, odd ratio; CI, confidence interval;

^*All variables with p-value <0.1 by univariate analysis were included in the model.