AIDS (London, England) · 2019
Does bacterial vaginosis modify the effect of hormonal contraception on HIV seroconversion.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Sabo Michelle C, Richardson Barbra A, Lavreys Ludo, Martin Harold L, Jaoko Walter, Mandaliya Kishorchandra, Baeten Jared M, Overbaugh Julie, McClelland R Scott
Аннотация
OBJECTIVES: A recent study of HIV serodiscordant couples found that depot medroxyprogesterone acetate (DMPA) and oral contraceptive pills (OCPs) were associated with increased HIV risk in the presence, but not in the absence, of bacterial vaginosis. We assessed whether bacterial vaginosis is an effect modifier of the association between hormonal contraception and HIV seroconversion in female sex workers (FSWs) in Mombasa, Kenya.
DESIGN: Prospective cohort study.
METHODS: Data collected from HIV-negative FSWs from 1993 to 2017 were analyzed. Cox proportional hazards models were used to assess the relationship between HIV seroconversion and use of DMPA, OCPs, or hormonal contraceptive implants (Norplant, Jadelle).
RESULTS: A total of 1985 women contributed 7127 person-years of follow-up; 307 women seroconverted to HIV (4.32/100 person-years). DMPA was significantly associated with elevated risk of HIV seroconversion in women with [aHR 1.56, 95% confidence interval (CI) 1.08-2.25; P = 0.02] and without (aHR 2.08, 95% CI 1.46-2.97; P < 0.001) bacterial vaginosis (interaction P = 0.4). Similarly, OCP use was associated with increased HIV risk both in the presence (aHR 1.50, 95% CI 0.94-2.39; P = 0.09) and absence (aHR 1.61, 95% CI 0.99-2.64; P = 0.06) of bacterial vaginosis (interaction P = 0.9), though neither stratum reached statistical significance. Implants were not associated with HIV seroconversion overall (aHR 0.99, 95% CI 0.40-2.45; P = 0.9), or in women with (aHR 0.65, 95% CI 0.16-2.72; P = 0.6) and without (aHR 1.39, 95% CI 0.43-4.46; P = 0.6) bacterial vaginosis (interaction P = 0.5).
CONCLUSION: Bacterial vaginosis had no effect on the associations between hormonal contraceptives and HIV seroconversion in this cohort. Contraceptive implants were not associated with increased HIV risk compared with no contraception.
DESIGN: Prospective cohort study.
METHODS: Data collected from HIV-negative FSWs from 1993 to 2017 were analyzed. Cox proportional hazards models were used to assess the relationship between HIV seroconversion and use of DMPA, OCPs, or hormonal contraceptive implants (Norplant, Jadelle).
RESULTS: A total of 1985 women contributed 7127 person-years of follow-up; 307 women seroconverted to HIV (4.32/100 person-years). DMPA was significantly associated with elevated risk of HIV seroconversion in women with [aHR 1.56, 95% confidence interval (CI) 1.08-2.25; P = 0.02] and without (aHR 2.08, 95% CI 1.46-2.97; P < 0.001) bacterial vaginosis (interaction P = 0.4). Similarly, OCP use was associated with increased HIV risk both in the presence (aHR 1.50, 95% CI 0.94-2.39; P = 0.09) and absence (aHR 1.61, 95% CI 0.99-2.64; P = 0.06) of bacterial vaginosis (interaction P = 0.9), though neither stratum reached statistical significance. Implants were not associated with HIV seroconversion overall (aHR 0.99, 95% CI 0.40-2.45; P = 0.9), or in women with (aHR 0.65, 95% CI 0.16-2.72; P = 0.6) and without (aHR 1.39, 95% CI 0.43-4.46; P = 0.6) bacterial vaginosis (interaction P = 0.5).
CONCLUSION: Bacterial vaginosis had no effect on the associations between hormonal contraceptives and HIV seroconversion in this cohort. Contraceptive implants were not associated with increased HIV risk compared with no contraception.