Table 2

Prevalence of human papillomavirus at study start by age

Age (years)
25–3334–69Total
N3277794311 220
HPV statusPer centPer centPer cent
HPV-negative92.997.996.4
HPV31/33/45 (not 16, not 18) 2.6 0.8 1.4
HPV18 (not 16) 1.0 0.3 0.5
HPV16 3.4 1.0 1.7