Evaluation of the Revised Versus Original Ryan White Part A HIV Care Coordination Program in a Cluster-Randomized, Stepped-Wedge Trial

J Acquir Immune Defic Syndr. 2023 Apr 1;92(4):325-333. doi: 10.1097/QAI.0000000000003139. Epub 2022 Dec 22.


Background: To address challenges with delivery of an evidence-based HIV care coordination program (CCP), the New York City Health Department initiated a CCP redesign. We conducted a site-randomized stepped-wedge trial to evaluate effectiveness of the revised versus the original model.

Setting: The CCP is delivered in New York City hospitals, community health centers, and community-based organizations to people experiencing or at risk for poor HIV outcomes.

Methods: The outcome, timely viral suppression (TVS), was defined as achievement of viral load <200 copies/mL within 4 months among enrollees with unsuppressed viral load (≥200 copies/mL). Seventeen original-CCP provider agencies were randomized within matched pairs to early (August 2018) or delayed (May 2019) starts of revised-model implementation. Data from 3 periods were examined to compare revised versus original CCP effects on TVS. The primary analysis of the intervention effect applied fully conditional maximum likelihood estimation together with an exact, conditional P -value and an exact test-based 95% CI. We assigned each trial enrollee the implementation level of their site (based on a three-component measure) and tested for association with TVS, adjusting for period and study arm.

Results: Over 3 nine-month periods, 960 individuals were eligible for trial inclusion (intention to treat). The odds ratio of TVS versus no TVS comparing revised with original CCP was 0.88 (95% CI: 0.45, 1.7). Thus, the revised program yielded slightly lower TVS, although the effect was statistically nonsignificant. TVS was not significantly associated with revised-CCP implementation level.

Conclusion: Program revisions did not increase TVS, irrespective of the implementation level.

Trial registration: ClinicalTrials.gov NCT03628287.

Publication types

  • Evaluation Study
  • Randomized Controlled Trial
  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • HIV Infections*
  • Hospitals
  • Humans
  • New York City
  • Viral Load

Associated data

  • ClinicalTrials.gov/NCT03628287