Abstract
Determinants of human papillomavirus (HPV)-16 serological conversion and persistence were assessed in a population-based cohort of 10049 women in Guanacaste, Costa Rica. Serologic responses to HPV-16 were measured in 7986 women by VLP-based enzyme-linked immunosorbent assay at both study enrolment (1993/94) and at 5-7 years of follow-up. Seropositive women were defined as ≥ 5 standard deviations above the mean optical density obtained for studied virgins at enrolment (n = 573). Seroconnversion (n = 409), persistence (n = 675), and clearance (n = 541) were defined based on enrolment and follow-up serology measurements. Age-specific distributions revealed that HPV-16 seroconversion was highest among 18- to 24-year-old women, steadily declining with age; HPV-16 seropersistence was lowest in women 65 + years. In age-adjusted multivariate logistic regression models, a 10-fold risk increase for HPV-16 seroconversion was associated with HPV-16 DNA detection at enrolment and follow-up; two-fold risk of seroconversion to HPV-16 was associated with increased numbers of lifetime and recent sexual partners and smoking status. Determinants of HPV-16 seropersistence included a 1.5-fold risk increase associated with having one sexual partner during follow-up, former oral contraceptive use, and a 3-fold risk increase associated with HPV-16 DNA detection at both enrolment and follow-up. Higher HPV-16 viral load at enrolment was associated with seroconversion, and higher antibody titres at enrolment were associated with seropersistence.
Original language | English (US) |
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Pages (from-to) | 1269-1274 |
Number of pages | 6 |
Journal | British journal of cancer |
Volume | 91 |
Issue number | 7 |
DOIs | |
State | Published - Oct 4 2004 |
Keywords
- Cancer
- Cervix
- Conversion
- HPV
- Persistence
- Serology
ASJC Scopus subject areas
- Oncology
- Cancer Research