BACKGROUND
Federally Qualified Health Centers (FQHCs) provide primary care for millions of Americans, but little is known about Medicare beneficiaries who use FQHCs.
OBJECTIVE
To compare patient characteristics and health care service use among Medicare beneficiaries stratified by FQHC use.
RESEARCH DESIGN
Cross-sectional analysis of 2011 Medicare fee-for-service beneficiaries age 65 and older.
SUBJECTS
Beneficiaries with at least one evaluation and management (E&M) visit in 2011, categorized as FQHC users (>=1 E&M visit to FQHCs) or non-users living in the same Primary Care Service Areas as FQHC users. Users were sub-classified as predominant if the majority of their E&M visits were to FQHCs.
MEASURES
Demographic characteristics, physician visits, and inpatient care use.
RESULTS
Most FQHC users (56.6%) were predominant users. Predominant and non-predominant users, compared with non-users, markedly differed by prevalence of multiple chronic conditions (18.2%, 31.7% vs. 22.7%) and annual mortality (2.8%, 3.8% vs. 4.0%; all p < 0.05). In adjusted analyses (reference: non-users), predominant users had fewer physician visits (RR 0.81, 95% CI: 0.81–0.81) and fewer hospitalizations (RR 0.84, 95% CI: 0.84–0.85), while non-predominant users had higher use of both types of service (RR 1.18, 95% CI: 1.18–1.18; RR 1.09, 95% CI: 1.08, 1.10, respectively).
CONCLUSION
Even controlling for primary care delivery markets, non-predominant FQHC users had a higher burden of chronic illness and service use than predominant FQHC users. It will be important to monitor Medicare beneficiaries using FQHCs to understand whether primary-care only payment incentives for FQHCs could induce fragmented care.