BACKGROUND: Published data are equivocal about the relative rates of male-to-female and female-to-male human papillomavirus (HPV) transmission. Our objective was to estimate genital HPV incidence among heterosexual partners from a broad age range and to investigate the effects of monogamy and relationship duration on incidence. METHODS: HPV genotyping was conducted for heterosexual partners, aged 18-70 years, from Tampa, Florida, who provided genital exfoliated cell specimens at semiannual visits during a 2-year study. The rate of incident HPV detection was assessed for 99 couples, and transmission incidence was estimated among a subset of 65 discordant couples. We also evaluated the effect of monogamy and relationship duration on transmission incidence. RESULTS: Couples were followed up for a median of 25 months and had a mean age of 33 years for both sexes. The HPV type-specific transmission incidence rate was 12.3 (95% confidence interval, 7.1-19.6) per 1000 person-months for female-to-male transmission and 7.3 (95% confidence interval, 3.5-13.5) per 1000 person-months for male-to-female transmission. Regardless of monogamy status or relationship duration, there was a similar pattern of increased incident HPV detection among men compared with women. CONCLUSIONS: HPV may be transmitted more often from women to men than from men to women, suggesting a need for prevention interventions, such as vaccination, for men.
BACKGROUND: Published data are equivocal about the relative rates of male-to-female and female-to-male human papillomavirus (HPV) transmission. Our objective was to estimate genital HPV incidence among heterosexual partners from a broad age range and to investigate the effects of monogamy and relationship duration on incidence. METHODS:HPV genotyping was conducted for heterosexual partners, aged 18-70 years, from Tampa, Florida, who provided genital exfoliated cell specimens at semiannual visits during a 2-year study. The rate of incident HPV detection was assessed for 99 couples, and transmission incidence was estimated among a subset of 65 discordant couples. We also evaluated the effect of monogamy and relationship duration on transmission incidence. RESULTS: Couples were followed up for a median of 25 months and had a mean age of 33 years for both sexes. The HPV type-specific transmission incidence rate was 12.3 (95% confidence interval, 7.1-19.6) per 1000 person-months for female-to-male transmission and 7.3 (95% confidence interval, 3.5-13.5) per 1000 person-months for male-to-female transmission. Regardless of monogamy status or relationship duration, there was a similar pattern of increased incident HPV detection among men compared with women. CONCLUSIONS:HPV may be transmitted more often from women to men than from men to women, suggesting a need for prevention interventions, such as vaccination, for men.
Entities:
Keywords:
couples; epidemiology; genitals; human papillomavirus; incidence; transmission
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