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Table 2 Baseline HPV prevalence [%] for total cohort according to case–control status and cytology

From: Tumour suppressor gene methylation and cervical cell folate concentration are determinants of high-risk human papillomavirus persistence: a nested case control study

HPV type   Cases     Controls   
  Normal Borderline Mild All Normal Borderline Mild All
16 29.3 23.0 32.3 28.6a 20.5 23.1 25.3 22.0
18 14.8 19.2 13.13 15.4 13.1 13.3 6.1 11.6
31 11.7 17.3 14.14 13.3 9.5 11.0 2.0 8.3
33 5.0 11.0 8.08 6.9 5.7 12.1 2.0 6.1
35 4.2 6.1 4.04 4.6 3.5 6.6 6.1 4.7
39 9.8 11.0 10.10 10.2 9.2 13.2 13.1 10.8
45 8.1 2.7 9.09 7.1 8.5 5.5 5.1 7.2
51 11.0 12.1 15.15 12.0 9.9 7.7 28.3 13.3
52 18.4 13.0 18.18 17.2a 9.9 22.0 9.1 12.1
56 4.2 5.3 12.12 6.0 8.8 12.1 12.1 10.2b
58 5.0 11.2 17.17 8.7 5.7 3.3 3.0 4.7
59 10.6 6.1 4.04 8.3 7.1 5.5 5.1 6.3
68 3.9 2.6 6.06 3.9 4.6 1.1 5.1 4.0
73 3.5 2.0 2.02 2.9 2.5 4.4 4.0 3.2
82 0.40 1.1 0 0.4 2.8 0.0 0.00 1.7
N 283 100 99 482 283 91 99 473
  1. asignificantly greater than controls, P < 0.02; bsignificantly greater than cases, P < 0.05.
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