HIV treatment cascade for older adults in rural South Africa
Objectives The HIV treatment cascade is a powerful framework for understanding progress from initial diagnosis to successful treatment. Data sources for cascades vary and often are based on clinical cohorts, population cohorts linked to clinics, or self-reported information. We use both biomarkers a...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2020
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| In: |
Sexually transmitted infections
Year: 2019, Volume: 96, Issue: 4 |
| ISSN: | 1472-3263 |
| DOI: | 10.1136/sextrans-2018-053925 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1136/sextrans-2018-053925 Verlag, lizenzpflichtig, Volltext: https://sti.bmj.com/content/early/2019/06/26/sextrans-2018-053925 
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| Author Notes: | Julia K. Rohr, Jennifer Manne-Goehler, Francesc Xavier Gómez-Olivé, Ryan G. Wagner, Molly Rosenberg, Pascal Geldsetzer, Chodziwadziwa Kabudula, Kathleen Kahn, Stephen Tollman, Till Bärnighausen, Joshua A. Salomon |
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| 245 | 1 | 0 | |a HIV treatment cascade for older adults in rural South Africa |c Julia K. Rohr, Jennifer Manne-Goehler, Francesc Xavier Gómez-Olivé, Ryan G. Wagner, Molly Rosenberg, Pascal Geldsetzer, Chodziwadziwa Kabudula, Kathleen Kahn, Stephen Tollman, Till Bärnighausen, Joshua A. Salomon |
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| 520 | |a Objectives The HIV treatment cascade is a powerful framework for understanding progress from initial diagnosis to successful treatment. Data sources for cascades vary and often are based on clinical cohorts, population cohorts linked to clinics, or self-reported information. We use both biomarkers and self-reported data from a large population-based cohort of older South Africans to establish the first HIV cascade for this growing segment of the HIV-positive population and compare results using the different data sources. - Methods Data came from the Health and Aging in Africa: A Longitudinal Study of an INDEPTH Community in South Africa (HAALSI) 2015 baseline survey of 5059 adults aged 40+ years. Dried blood spots (DBS) were screened for HIV, antiretroviral drugs and viral load. In-home surveys asked about HIV testing, diagnosis and antiretroviral therapy (ART) use. We calculated proportions and CIs for each stage of the cascade, conditional on attainment of the previous stage, using (1) biomarkers, (2) self-report and (3) both biomarkers and self-report, and compared with UNAIDS 90-90-90 targets. - Results 4560 participants had DBS results, among whom 1048 (23%) screened HIV-positive and comprised the denominator for each cascade. The biomarker cascade showed 63% (95% CI 60 to 66) on ART and 72% (95% CI 69 to 76) of those on ART with viral suppression. Self-reports underestimated testing, diagnosis and ART, with only 47% (95% CI 44 to 50) of HIV-positive individuals reporting ART use. The combined cascade indicated high HIV testing (89% (95% CI 87 to 91)), but lower knowledge of HIV-positive status (71% (95% CI 68 to 74)). - Conclusions Older South Africans need repeated HIV testing and sustained ART to reach 90-90-90 targets. HIV cascades relying on self-reports are likely to underestimate true cascade attainment, and biomarkers provide substantial improvements to cascade estimates. | ||
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