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Female Human Papillomavirus Infection Associated with Increased Risk of Infertility: A Nationwide Population-Based Cohort Study

Author

Listed:
  • Li-Chuan Hsu

    (Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital Pingtung Branch, Pingtung 91245, Taiwan
    Department of Healthcare Administration and Medical Informatics, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
    Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan)

  • Kuan-Hao Tsui

    (Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan
    Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Pingtung 90741, Taiwan)

  • James Cheng-Chung Wei

    (Division of Allergy, Immunology and Rheumatology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
    Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
    Graduate Institute of Integrated Medicine, China Medical University, Taichung 40402, Taiwan)

  • Hei-Tung Yip

    (Management Office for Health Data, China Medical University Hospital, Taichung 404332, Taiwan)

  • Yao-Min Hung

    (Department of Internal Medicine, Kaohsiung Municipal United Hospital, Kaohsiung 80457, Taiwan
    Department of Medicine, School of Medicine, National Yang Ming University, Taipei 11221, Taiwan
    Department of Senior Citizen Service Management, Yuh-Ing Junior College of Health Care and Management, Kaohsiung 80776, Taiwan)

  • Renin Chang

    (Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan
    Department of Recreation Sports Management, Tajen University, Pingtung 90741, Taiwan)

Abstract

Objective. This study investigated whether women with a history of human papillomavirus (HPV) infection have an increased risk of infertility. Material and Methods. All patients with an HPV infection (n = 11,198) in Taiwan’s National Health Insurance Research Database (2000–2012) were propensity score matched with control subjects (n = 11,198) without an HPV infection by age, sex, index year, and relevant co-morbidities. Both groups were tracked until a diagnosis of infertility was recorded. The Chi-square test was used to analyze the distribution of demographic characteristics in the HPV group and non-HPV group. A Cox proportional hazards regression was used to estimate the hazard ratios (HRs) for the development of infertility, adjusting for age, sex, and co-morbidities. The Kaplan–Meier method was used to plot the cumulative incidence curves. We also performed negative controls to test for possible unmeasured confounding. Results. The HPV cohort had a higher risk of infertility. The adjusted HR (aHR) was found to be 1.39 (95% CI = 1.19–1.63) after adjusting for demographic characteristics and relevant co-morbidities. In the age subgroup analysis, patients with an HPV infection had an increased risk of infertility compared to the non-HPV cohort in the group aged 26 to 35 years (aHR, 1.53; 95% CI = 1.24–1.88). As we used propensity score matching to treat measurable confounders and negative controls to access unmeasured confounders, the findings of the study are robust. Conclusions. Among females of reproductive age, HPV infection is a potential risk factor that predisposes individuals to subsequent infertility.

Suggested Citation

  • Li-Chuan Hsu & Kuan-Hao Tsui & James Cheng-Chung Wei & Hei-Tung Yip & Yao-Min Hung & Renin Chang, 2020. "Female Human Papillomavirus Infection Associated with Increased Risk of Infertility: A Nationwide Population-Based Cohort Study," IJERPH, MDPI, vol. 17(18), pages 1-9, September.
  • Handle: RePEc:gam:jijerp:v:17:y:2020:i:18:p:6505-:d:410004
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