Table 2. Association of HPV infection pattern with high-grade cervical intraepithelial neoplasia in cases.

Model	Dependent variable	Ordinal logistic regression for CIN 1, 2, and 3			Binomial logistic regression for CIN2/3 vs. CIN1			Binomial logistic regression for CIN3 vs. CIN1/2
		OR (95% CI)	P		OR (95% CI)	P		OR (95% CI)	P
Abbreviation: CIN=cervical intraepithelial neoplasia; HPV=human papillomavirus; OR=odds ratio; CI=confidence interval.
Model 1	HPV negative	Reference			Reference			Reference
	Other HPV types (no HPV-16/18)	2.14 (1.54−2.99)	<0.001		2.15 (1.54−3.02)	<0.001		2.12 (1.28−3.50)	0.003
	HPV-16/18	5.51 (3.92−7.73)	<0.001		5.74 (4.04−8.15)	<0.001		5.07 (3.09−8.32)	<0.001
Model 2	HPV negative	Reference			Reference			Reference
	Other HPV types (no HPV-16/18)	2.17 (1.55−3.02)	<0.001		2.17 (1.54−3.03)	<0.001		2.13 (1.29−3.52)	0.003
	HPV-16 related	6.96 (4.92−9.84)	<0.001		7.48 (5.19−10.76)	<0.001		6.12 (3.71−10.08)	<0.001
	HPV-18 related (no HPV-16)	1.33 (0.76−2.31)	0.305		1.40 (0.80−2.46)	0.296		0.92 (0.37−2.29)	0.864