Viral suppression among persons in HIV care in the United States during 2009-2013: sampling bias in Medical Monitoring Project surveillance estimates.
Publication/Presentation Date
3-1-2019
Abstract
PURPOSE: To assess sampling bias in national viral suppression (VS) estimates derived from the Medical Monitoring Project (MMP) resulting from use of an abbreviated (four-month) annual sampling period. We aimed to improve VS estimates using cohort data from the North American AIDS Cohort Collaboration on Research and Design (NA-ACCORD) and a novel cohort-adjustment method.
METHODS: Using full calendar years of NA-ACCORD data, we assessed timing of HIV care attendance (inside vs. exclusively outside MMP's four-month sampling period), VS status at last test (≥200 copies/mL), and associated demographics. These external estimates were used to standardize MMP to NA-ACCORD data with multivariable regression models of care attendance and VS, yielding adjusted 2009-2013 VS estimates with 95% confidence intervals.
RESULTS: Weighted percentages of VS among persons in HIV care were 67% in 2009 and 77% in 2013. These estimates are slightly lower than previously published MMP estimates (72% and 80% in 2009 and 2013, respectively). The number of persons receiving HIV care was previously underestimated by 20%, because patients receiving care exclusively outside the MMP sampling period did not contribute toward the weighted population estimate.
CONCLUSIONS: Careful examination of national surveillance estimates using data triangulation and novel methodologies can improve the robustness of VS estimates.
Volume
31
First Page
3
Last Page
7
ISSN
1873-2585
Published In/Presented At
Bradley, H., Althoff, K. N., Buchacz, K., Brooks, J. T., Gill, M. J., Horberg, M. A., Kitahata, M. M., Marconi, V., Mayer, K. H., Mayor, A., Moore, R., Mugavero, M., Napravnik, S., Paz-Bailey, G., Prejean, J., Rebeiro, P. F., Rentsch, C. T., Shouse, R. L., Silverberg, M. J., Sullivan, P. S., … Rosenberg, E. S. (2019). Viral suppression among persons in HIV care in the United States during 2009-2013: sampling bias in Medical Monitoring Project surveillance estimates. Annals of epidemiology, 31, 3–7. https://doi.org/10.1016/j.annepidem.2018.11.005
Disciplines
Business Administration, Management, and Operations | Health and Medical Administration | Management Sciences and Quantitative Methods
PubMedID
30529086
Department(s)
Administration and Leadership
Document Type
Article
