Assessing the Impact of Universal Test and Treat Implementation Strategy on Retention to Antiretroviral Therapy in HIV Care: A Retrospective Cohort Review
Abstract:
Namibia has an adult HIV prevalence of
12.6% according to the Namibia population-based HIV impact assessment survey of
2017 making it one of the highest in the world. Early initiation of antiretroviral
therapy (ART) has excellent outcomes for both morbidity and mortality. The National
Strategic Framework for HIV and the Namibia Ministry of Health and Social Services
(MoHSS) rolled out the WHO 2015 UTTS guidelines making Namibia one of the first
African countries to implement UTTS. With UTTS guidelines, rolled out in October
2016, clients who test HIV positive are initiated on ART immediately preferably
the same day or within seven days regardless of their HIV clinical stage or CD4
count. Retention in care is required for optimal clinical outcomes in patients with
HIV infection. However, after two years of adopting the strategy, it is not well
understood whether UTTS affects the retention to care. We
therefore sought to establish any emerging differences in retention of ART care
after the implementation of UTTS. We used a retrospective cohort review study design
that employed both quantitative and qualitative methods. 879 client records were
reviewed, 678 clients were initiated on treatment two years prior to the UTTS and
201 were initiated after January 2017 when the UTTS was fully rolled out and had
been on treatment for at least 12 months. Data analysis was done using Excel and
Statistical Package for Social Sciences (SPSS) version 23.0 software. The overall retention after 12 months of follow-up was (822/879) 93.5% (95%
CI: 91.3% to 95.7%). The retention rate at 12 months among clients in the UTTS cohort
was 95.5% (95% CI: 93.5% to 97.5%) and somewhat higher than that in the pre-UTTS
cohort 92.9% (95% CI: 90.6% to 95.2%). At the
end of the review period, attrition was higher in the pre-UTTS cohort 251/678 (37.0%;
95% CI 34.8 to 39.2) versus 42/201 (21.0%; 95% CI 19.0 to 23) during UTTS. Retention
on ART was nearly 5% higher after UTTS implementation but young adults and men between
31 and 40 years of age had higher chances of attrition at the time of ART initiation. We recommend that all facilities in Namibia and other parts
of sub-Saharan Africa should embrace the UTTS strategy to benefit their clients.
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