Health and economic impacts of an HIV intervention in out of treatment substance abusers: evidence from a dynamic model
Richter, A., & Loomis, B. (2005). Health and economic impacts of an HIV intervention in out of treatment substance abusers: evidence from a dynamic model. Health Care Management Science, 8(1), 67-79. DOI: 10.1007/s10729-005-5218-1
Abstract Introduction. A community-based intervention program found that the high-risk target population interacts with its surrounding community as a source of drugs and prostitution, creating a measure of co-dependence in the health status of each group.
Methodology. The intervention collected extensive data on sexual and drug use practices in the target population. A dynamic compartment model estimates the epidemiological impact of the intervention, which serves as the basis for the economic assessment comparing intervention costs and lifetime HIV treatment costs.
Results. Approximately 2/3 of the new infections arise in the surrounding community. Intervention spillover benefits in the surrounding community are sufficient to make the intervention cost-saving in the first year—a savings of $534,000.
Conclusions. Conducting the intervention results in health benefits and cost-savings not only for the risk group, but for the entire community in which it resides. Quantifying the spillovers is vital to policymakers attempting to allocate scarce public health resources.