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Table 2 HPV infection is likely to be sexually acquired: vaginal-sex and oral sex partners

From: Oral sex, cancer and death: sexually transmitted cancers

Sexual behavior Control patients Patients with Oropharyngeal Cancer Adjusted Odds ratio (95% CI) HPV 16+ Patients Adjusted Odds ratio (95% CI) All patients
Lifetime number of vaginal-sex partners
0–5 54 31 1.0 1.0
6–25 32 41 2.7 (1.4–5.5) 2.2 (1.2–4.0)
≥26 14 28 4.2 (1.8–9.4) 3.1 (1.5–6.5)
Lifetime number of oral-sex partners
0 19 12 1.0 1.0
1–5 55 46 3.8 (1.0–14.0) 1.9 (0.8–4.5)
≥6 26 42 8.6 (2.2–34.0) 3.4 (1.3–8.8)
  1. Modified from D’Souza G, Kreimer AR, Viscidi R, Pawlita M, Fakhry C, Koch WM, et al. Case-control study of human papillomavirus and oropharyngeal cancer. N Engl J Med. 2007 May 10;356(19):1944–56.