Community Health Workers: An Examination of State Policies and Analysis of a Healthcare-Based Intervention for Diabetes Management

Abstract

Community Health Workers (CHW) are trusted frontline members of the public health workforce with a unique understanding of the communities they serve. CHW interventions have been shown effective and economical in improving certain health outcomes, including diabetes-related complications and self-management. The ability of CHWs to relate to patients in a culturally appropriate manner positions them to better address social determinants of health and inequities than many allied health professionals. State-level CHW legislation varies by jurisdiction and can direct CHW processes including definitions, funding, and scope of practice. The Diabetes Project – Indianapolis Neighborhoods (DIP-IN) intervention employs clinic-based CHWs to work with high-risk patients with diabetes in three Indianapolis communities with disproportionately high diabetes prevalence rates. DIP-IN CHWs are based in select Eskenazi Health Federally Qualified Health Centers and deliver services to patients primarily through home visits or phone calls. This dissertation examines CHW policies and the impact of the DIP-IN CHW intervention on patient outcomes in relation to a comparison group. This dissertation includes three studies 1) a state-level policy surveillance exploring legislation that includes best practices for CHW policy, 2) a study using a difference-in-difference approach through the application of generalized linear mixed models to estimate the effect of DIP-IN on A1C and hospital outcomes, and 3) a study using multivariat regression and negative binomial modeling to estimate the impact of DIP-IN on COVID-19 hospitalization and length of stay. As financing influences duration and application of CHW interventions, this dissertation aims to explore the landscape over time of CHW legislation and evaluate a privately funded CHW program model intended to improve health outcome among high-risk patients with diabetes. It also aims to strengthen the knowledge base for CHW involvement in improving clinical-community linkages to support diabetes management.