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An Affordable HIV-1 Drug Resistance Monitoring Method for Resource Limited Settings
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Evaluation of large-scale combination HIV prevention programs: essential issues.

Nancy S Padian1, Sandra I McCoy, Shanthi Manian

  • 1Office of the US Global AIDS Coordinator, US Department of State, Washington, DC, USA.

Journal of Acquired Immune Deficiency Syndromes (1999)
|June 23, 2011
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Summary

Evaluating combination HIV prevention programs presents challenges. This commentary discusses key considerations for planning impact evaluations, including defining the package and choosing study designs.

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Area of Science:

  • Public Health
  • Epidemiology
  • HIV Research

Background:

  • HIV prevention research increasingly uses combination prevention strategies, integrating biomedical, behavioral, and structural interventions.
  • Large-scale implementation of these integrated packages poses significant evaluation challenges.
  • Methodological difficulties, such as the lack of a reliable HIV incidence assay and naive control groups, complicate rigorous evaluation.

Purpose of the Study:

  • To discuss key considerations for planning impact evaluations of combination HIV prevention programs.
  • To address the unique methodological and logistical challenges in evaluating these complex interventions.
  • To provide guidance on designing effective evaluations for scaled-up HIV prevention initiatives.

Main Methods:

  • The commentary outlines critical aspects for designing impact evaluations.
  • It emphasizes defining the 'evaluable package' of interventions.
  • It discusses selecting appropriate study designs with valid counterfactuals and relevant outcomes.

Main Results:

  • Challenges in evaluating combination HIV prevention include determining overall impact and assessing individual component effectiveness.
  • Specific methodological hurdles unique to HIV, like the absence of a reliable incidence assay, are highlighted.
  • The need for mid-course program corrections is also identified as crucial.

Conclusions:

  • Rigorous impact evaluations of combination HIV prevention programs require careful planning to address inherent complexities.
  • Key considerations include defining the scope of evaluation, selecting appropriate methodologies, and adapting programs based on ongoing assessment.
  • Effective evaluation strategies are essential for maximizing the impact of comprehensive HIV prevention efforts.