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  • Title: Associations of hormonal contraceptive use with measures of HIV disease progression and antiretroviral therapy effectiveness.
    Author: Whiteman MK, Jeng G, Samarina A, Akatova N, Martirosyan M, Kissin DM, Curtis KM, Marchbanks PA, Hillis SD, Mandel MG, Jamieson DJ.
    Journal: Contraception; 2016 Jan; 93(1):17-24. PubMed ID: 26197261.
    Abstract:
    OBJECTIVE: To examine the associations between hormonal contraceptive use and measures of HIV disease progression and antiretroviral treatment (ART) effectiveness. STUDY DESIGN: A prospective cohort study of women with prevalent HIV infection in St. Petersburg, Russia, was conducted. After contraceptive counseling, participants chose to use combined oral contraceptives (COCs), depot-medroxyprogesterone acetate (DMPA), a copper intrauterine device (IUD) or male condoms for pregnancy prevention. Among participants not using ART at enrollment, we used multivariate Cox regression to assess the association between current (time-varying) contraceptive use and disease progression, measured by the primary composite outcome of CD4 decline to <350 cells/mm(3), ART initiation or death. Among participants using ART at enrollment, we used linear mixed models to estimate the predicted mean CD4 change at select time points by contraceptive method. RESULTS: During a total of 5233 months follow-up among participants not using ART with enrollment CD4 ≥350 cells/mm(3) (n=315), 97 experienced disease progression. Neither current use of COCs [adjusted hazard ratio (aHR) 0.91, 95% confidence interval (CI) 0.56-1.48] nor DMPA (aHR 1.28, 95% CI 0.71-2.31) was associated with a statistically significant increased risk for disease progression compared with use of nonhormonal methods (IUD or condoms). Among participants using ART at enrollment (n=77), we found no statistically significant differences in the predicted mean changes in CD4 cell count comparing current use of COCs (p=.1) or DMPA (p=.3) with nonhormonal methods. CONCLUSION: Hormonal contraceptive use was not significantly associated with measures of HIV disease progression or ART effectiveness among women with prevalent HIV infection. IMPLICATIONS: Hormonal contraceptive use was not significantly associated with measures of HIV disease progression or ART effectiveness among women with prevalent HIV infection.
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