Original ArticlesUse of Federally Qualified Health Centers and Potentially Preventable Hospital Utilization Among Older Medicare-Medicaid EnrolleesWright, Brad PhD; Potter, Andrew J. MA; Trivedi, Amal N. MD, MPHAuthor Information Department of Health Management and Policy, University of Iowa College of Public Health, Iowa City (Dr Wright and Mr Potter); and Department of Health Services, Policy and Practice, School of Public Health, Brown University, and Center for Innovation in Long-Term Services and Supports, Providence Veterans Affairs Medical Center, Providence, Rhode Island (Dr Trivedi). Correspondence: Brad Wright, PhD, Assistant Professor, Department of Health Management and Policy, University of Iowa College of Public Health, 145 N. Riverside Dr, Iowa City, IA 52242 ([email protected]). The authors thank Fred Ullrich and Jeff Hiris for extensive support with data management and SAS programming.This research was supported by NIH grant #L60 MD007506 and Retirement Research Foundation Grant #2012225.No other conflicts of interest declared. Journal of Ambulatory Care Management: April/June 2017 - Volume 40 - Issue 2 - p 139-149 doi: 10.1097/JAC.0000000000000158 Buy Metrics Abstract Using Medicare claims data from 2007 to 2010, we sought to determine whether dual eligibles 65 years and older who utilize federally qualified health centers (FQHCs) have lower rates of ambulatory care-sensitive hospitalizations and emergency department visits compared with nonusers. We found that FQHC use is associated with increased ambulatory care-sensitive hospitalization rates for whites and other races, but a decrease among blacks. Depending on race, FQHC use is associated with an increase of 24 to 43 ambulatory care-sensitive emergency department visits per thousand persons annually. More research is needed to understand why FQHC use is associated with these outcomes among dual eligibles. © 2017 Wolters Kluwer Health, Inc. All rights reserved.