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Vaccination of Young Women Decreases Human Papillomavirus Transmission in Heterosexual Couples: Findings from the HITCH Cohort Study
- Source :
- Cancer Epidemiol Biomarkers Prev
- Publication Year :
- 2019
- Publisher :
- American Association for Cancer Research (AACR), 2019.
-
Abstract
- Background: Vaccination against human papillomaviruses (HPV) prevents HPV infections and, consequently, cervical lesions. However, the effect of vaccination on HPV transmission within couples is unknown. Methods: We used data from HITCH, a prospective cohort study of heterosexual couples (women ages 18–24 years) in Montreal, 2005 to 2013. Vaccination history was self-reported. Genital samples were tested for HPV DNA by PCR (linear array). Type-specific viral loads were quantified using real-time PCR. OR and HR were estimated using multilevel mixed-effects logistic regression and a parametric model for interval- censored survival-time data, respectively. Differences in viral loads were evaluated using the Friedman ANOVA test. Results: Among 497 couples, 12, 16, and 35 women received 1, 2, or 3 vaccination doses at baseline, respectively. Median age at vaccination was 18 years. Most women (92.1%) had their first coitus before vaccination. At baseline, partner concordance of persistent HPV6/11/16/18 infections was lower in vaccinated than unvaccinated women [adjusted OR = 0.10; 95% confidence interval (CI), 0.01–0.65] but not for non α7/α9/α10-HPV types (adjusted OR = 1.00; 95% CI, 0.44–2.29). Incidence of persistent α7/α9/α10 HPV types in women was inversely associated with vaccination status at baseline (adjusted HR = 0.12; 95% CI, 0.03–0.47). Likewise, male partners of vaccinated women had a lower incidence of α7/α9/α10 HPV infections (adjusted OR = 0.22; 95% CI, 0.05–0.95). Vaccinated women with HPV 6/11/16/18 infections had lower viral loads (P = 0.001) relative to unvaccinated women. Conclusions: Vaccination of sexually active women significantly reduced transmission of α7/α9/α10 HPV types in heterosexual couples. Impact: These results underscore and quantify the positive effect of HPV vaccination on HPV transmission within heterosexual couples.
- Subjects :
- Adult
0301 basic medicine
medicine.medical_specialty
Adolescent
Epidemiology
Concordance
Article
Cohort Studies
Young Adult
03 medical and health sciences
0302 clinical medicine
Humans
Medicine
Papillomavirus Vaccines
Young adult
Heterosexuality
Prospective cohort study
Papillomaviridae
business.industry
Obstetrics
Incidence (epidemiology)
Papillomavirus Infections
Confidence interval
3. Good health
Vaccination
Sexual Partners
030104 developmental biology
Oncology
030220 oncology & carcinogenesis
Female
business
Viral load
Cohort study
Subjects
Details
- ISSN :
- 15387755 and 10559965
- Volume :
- 28
- Database :
- OpenAIRE
- Journal :
- Cancer Epidemiology, Biomarkers & Prevention
- Accession number :
- edsair.doi.dedup.....22e04973ecbc10ca51576b863e18c37a