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. 2016 Oct;22(10):1732–1740. doi: 10.3201/eid2210.160675

Table 2. Summary prevalence ratios for meta-analysis of changes in nonvaccine high-risk HPV types among girls and women, by age group*.

Population age group, y, and HPVtype No. studies† Heterogeneity
Prevalence ratio 
(95% CI)
I2, % p value
≤19
HPV types in nonavalent vaccine 8
HPV31 6.4 0.381 0.73 (0.58–0.91)
HPV33 0 0.471 1.04 (0.78–1.38)
HPV45 5.5 0.387 0.96 (0.75–1.23)
HPV52 24.0 0.238 1.34 (1.13–1.59)
HPV58 0 0.727 1.01 (0.80–1.26)
Other high-risk HPV types 8
HPV35 25.1 0.229
HPV39 0 0.984 1.27 (1.05–1.54)
HPV51 43.6 0.088
HPV56 74.3 <0.001
HPV59 66.8 0.004
HPV68 0 0.690 1.26 (0.88–1.81)
Other possibly high-risk HPV types 6
HPV26 0 0.478 1.63 (0.84–3.16)
HPV53 3.6 0.394 1.51 (1.10–2.06)
HPV70 23.6 0.257 1.34 (0.75–2.39)
HPV73 0 0.961 1.36 (1.03–1.80)
HPV82

49.0
0.081

20–24
HPV types in nonavalent vaccine 8
HPV31 28.8 0.198
HPV33 50.9 0.047
HPV45 64.3 0.007
HPV52 31.0 0.180
HPV58 0 0.806 1.14 (0.99–1.31)
Other high-risk HPV types 8
HPV35 7.9 0.369 1.07 (0.85–1.34)
HPV39 0 0.522 1.13 (1.00–1.28)
HPV51 49.8 0.052
HPV56 82.6 <0.001
HPV59 63.6 0.007
HPV68 35.6 0.145
Other possibly high-risk HPV types 6
HPV26 44.3 0.110
HPV53 30.8 0.204
HPV70 25.1 0.246
HPV73 59.2 0.032
HPV82 38.3 0.151

*HPV, human papillomavirus; –, prevalence ratio not calculated because of heterogeneity of data.
†Number of studies was the same for all HPV types within each category.