The potential to expand antiretroviral therapy by improving health facility efficiency: evidence from Kenya, Uganda, and Zambia
Published July 20, 2016, in BMC Medicine (opens in a new window)
Abstract
Since 2000, international funding for HIV has supported scaling up antiretroviral therapy (ART) in sub-Saharan Africa. However, such funding has stagnated for years, threatening the sustainability and reach of ART programs amid efforts to achieve universal treatment. Improving health system efficiencies, particularly at the facility level, is an increasingly critical avenue for extending limited resources for ART; nevertheless, the potential impact of increased facility efficiency on ART capacity remains largely unknown. Through the present study, we sought to quantify facility-level technical efficiency across countries, assess potential determinants of efficiency, and predict the potential for additional ART expansion.
Methods
Using nationally representative facility datasets from Kenya, Uganda, and Zambia, and measures adjusting for structural quality, we estimated facility-level technical efficiency using an ensemble approach that combined restricted versions of Data Envelopment Analysis and Stochastic Distance Function. We then conducted a series of bivariate and multivariate regression analyses to evaluate possible determinants of higher or lower technical efficiency. Finally, we predicted the potential for ART expansion across efficiency improvement scenarios, estimating how many additional ART visits could be accommodated if facilities with low efficiency thresholds reached those levels of efficiency.
Results
In each country, national averages of efficiency fell below 50% and facility-level efficiency markedly varied. Among facilities providing ART, average efficiency scores spanned from 50% (95% uncertainty interval (UI), 48–62%) in Uganda to 59% (95% UI, 53–67%) in Zambia. Of the facility determinants analyzed, few were consistently associated with higher or lower technical efficiency scores, suggesting that other factors may be more strongly related to facility-level efficiency. Based on observed facility resources and an efficiency improvement scenario where all facilities providing ART reached 80% efficiency, we predicted a 33% potential increase in ART visits in Kenya, 62% in Uganda, and 33% in Zambia. Given observed resources in facilities offering ART, we estimated that 459,000 new ART patients could be seen if facilities in these countries reached 80% efficiency, equating to a 40% increase in new patients.
Conclusions
Health facilities in Kenya, Uganda, and Zambia could notably expand ART services if the efficiency with which they operate increased. Improving how facility resources are used, and not simply increasing their quantity, has the potential to substantially elevate the impact of global health investments and reduce treatment gaps for people living with HIV.
Citation
Di Giorgio L, Moses MW, Fullman N, et al. The potential to expand antiretroviral therapy by improving health facility efficiency: evidence from Kenya, Uganda, and Zambia. BMC Medicine. 2016 20 July. doi: 10.1186/s12916-016-0653-z.
Authors
- Laura Di Giorgio,
- Abraham Flaxman,
- Mark Moses,
- Nancy Fullman,
- Allie Wollum,
- Ruben Conner,
- Jane Achan,
- Tom Achoki,
- Kelsey Bannon,
- Roy Burstein,
- Emily Dansereau,
- Brendan DeCenso,
- Kristen Delwiche,
- Herbert Duber,
- Emmanuela Gakidou,
- Anne Gasasira,
- Annie Haakenstad,
- Gloria Ikilezi,
- Caroline Kisia,
- Aubrey Cook,
- Felix Masiye,
- Samuel Masters,
- Chrispin Mphuka,
- Pamela Njuguna,
- Thomas Odeny,
- Emelda Okiro,
- Allen Roberts,
- Christopher J.L. Murray
Datasets
All our datasets are housed in our data catalog, the Global Health Data Exchange (GHDx). Visit the GHDx to download data from this article.