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Advanced HIV disease and engagement in care among patients on antiretroviral therapy in South Africa: results from a multi-state model | Journal Article / Research | MSF Science Portal
Journal Article
|Research

Advanced HIV disease and engagement in care among patients on antiretroviral therapy in South Africa: results from a multi-state model

Patten GE, Euvrard J, Anderegg N, Boulle AM, Arendse KD, von der Heyden E, Ford NP, Davies MA

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Abstract
OBJECTIVE
Despite improved access to antiretroviral therapy (ART) for people with HIV (PWH), HIV continues to contribute considerably to morbidity and mortality. Increasingly, advanced HIV disease (AHD) is found among PWH who are ART-experienced.

DESIGN
Using a multi-state model we examined associations between engagement with care and AHD on ART in South Africa.

METHODS
Using data from IeDEA Southern Africa, we included PWH from South Africa, initiating ART from 2004 to 2017 aged more than 5 years with a CD4+ cell count at ART start and at least one subsequent measure. We defined a gap as no visit for at least 18 months. Five states were defined: ‘AHD on ART’ (CD4+ cell count <200 cells/μl), ‘Clinically Stable on ART’ (CD4+ cell count ≥200 or if no CD4+ cell count, viral load <1000 copies/ml), ‘Early Gap’ (commencing ≤18 months from ART start), ‘Late Gap’ (commencing >18 months from ART start) and ‘Death’.

RESULTS
Among 32 452 PWH, men and those aged 15–25 years were more likely to progress to unfavourable states. Later years of ART start were associated with a lower probability of transitioning from AHD to clinically stable, increasing the risk of death following AHD. In stratified analyses, those starting ART with AHD in later years were more likely to re-engage in care with AHD following a gap and to die following AHD on ART.

CONCLUSION
In more recent years, those with AHD on ART were more likely to die, and AHD at re-engagement in care increased. To further reduce HIV-related mortality, efforts to address the challenges facing these more vulnerable patients are needed.

Countries

South Africa

Subject Area

HIV/AIDSmortality

Languages

English
DOI
10.1097/QAD.0000000000003442
Published Date
24 Nov 2022
PubMed ID
36695361
Journal
AIDS
Volume | Issue | Pages
Volume 37, Issue 3, Pages 513-522
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