Table 1

The differences in prevalences of HPV-specific antibodies between populations from serological surveys performed in 1996 and 2001 and between serological survey 2001 and blood donors

	Age
	9–19 years (N=539)^*		19–39 years (N=1419)^†		≥40 years (N=969)^†
	OR (95% CI	p Value	OR (95% CI)	p Value	OR (95% CI	p Value
HPV-6	1.6 (0.9 to 2.8)	0.084	0.8 (0.6 to 1.0)	0.045	0.3 (0.2 to 0.5)	>0.0001
HPV-11	1.5 (0.9 to 2.6)	0.140	1.1 (0.8 to 1.6)	0.388	0.4 (0.3 to 0.6)	>0.0001
HPV-16	1.7 (0.7 to 3.9)	0.216	0.9 (0.6 to 1.2)	0.388	0.4 (0.2 to 0.6)	>0.0001
HPV-18	1.1 (0.5 to 2.5)	0.877	0.8 (0.5 to 1.2)	0.225	0.2 (0.1 to 0.4)	>0.0001
HPV-31	2.1 (1.0 to 4.6)	0.066	0.7 (0.5 to 1.0)	0.055	0.2 (0.1 to 0.4)	>0.0001
HPV-33	0.9 (0.4 to 2.3)	0.811	0.6 (0.4 to 1.0)	0.040	0.3 (0.2 to 0.6)	>0.0001

Adjusted for age and gender.
↵* Comparison of samples from serological survey performed in 1996 and 2001.
↵† Comparison of samples from blood donors and serological survey 2001.