. Author manuscript; available in PMC: 2012 Oct 15.

Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2008 Aug;17(8):2036–2043. doi: 10.1158/1055-9965.EPI-08-0151

Table 4.

Prevalence of vaccine-related HPV6, HPV11, HPV16, and HPV18 by country

	Brazil (N = 382)	Mexico (N = 362)	United States (N = 416)	Total (N = 1,160)
	n (%)	n (%)	n (%)	n (%)
HPV16 only	14 (3.7)	7 (1.9)	8 (1.9)	29 (2.5)
HPV16 + other types	27 (7.1)	20 (5.5)	28 (6.7)	75 (4.5)
HPV18 only^*	9 (2.4)	0 (0)	1 (0.2)	10 (0.9)
HPV18 + other types^*	12 (3.1)	6 (1.7)	2 (0.5)	20 (1.7)
HPV16 and/or HPV18 only^*	27 (7.1)	16 (4.4)	13 (3.1)	56 (4.8)
HPV18 and/or HPV18 + other types	39 (10.2)	24 (6.6)	29 (7.0)	92 (7.9)
HPV6 and/or HPV11 only	15 (3.9)	9 (2.5)	9 (2.2)	33 (2.8)
HPV6 and/or HPV11 + other types^*	44 (11.5)	20 (5.5)	26 (6.3)	90 (7.8)
HPV6 and/or HPV11 and/or HPV16 and/or HPV18^*	77 (20.2)	41 (11.3)	52 (12.5)	170 (14.7)
HPV6 and HPV11, and HPV16 and HPV18	0 (0)	0 (0)	0 (0)	0 (0)

NOTE: Due to infection with multiple HPV types, the percentages of infection exceed 100%.

HPV type distribution significantly different by region (P < 0.010).