Insurance Transitions and Changes in Physician and Emergency Department Utilization: An Observational Study

Journal of General Internal Medicine
Michael L BarnettBruce E Landon

Abstract

Shopping for health insurance is encouraged as a way to find the most affordable coverage that best meets an enrollee's needs. However, the extent to which individuals switch insurance and subsequent changes in health care utilization that might arise, particularly new physician visits, are not well understood. To examine the relationship between insurance switching and new physician and emergency department visits around the time of a switch. Observational study using a difference-in-differences design to compare those switching insurance carriers with propensity score-matched controls who did not switch, stratified based on whether individuals initially had private or Medicaid insurance coverage. All analyses adjusted for individual and insurance characteristics. Continuously insured, non-elderly individuals with private or Medicaid insurance coverage in Massachusetts from 2010 to 2013. Rates of new primary care and specialist physician visits, as well as rates of emergency department visits. Before matching, among 1,628,057 continuously insured individuals, 418,231 (26%) switched insurance carriers during a 2-year period. Characteristics of switchers and non-switchers were similar after matching (n = 316,343 in each group). ...Continue Reading

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Citations

Jul 8, 2020·The Annals of Otology, Rhinology, and Laryngology·Marissa SchwartzNikhila Raol
Jul 16, 2017·Journal of General Internal Medicine·Michael Dworsky
Mar 5, 2019·Epidemiology·Lauren E ParlettMichael B Cook
May 3, 2019·Journal of the American Medical Informatics Association : JAMIA·Mina OstovariDenny Yu
Jan 3, 2019·Maternal and Child Health Journal·Dmitry TuminJoseph D Tobias
Dec 18, 2020·JAMA Network Open·John A GravesDaniel Polsky
Feb 25, 2021·Health Services Research·Katherine Piwnica-WormsChima D Ndumele
Mar 16, 2021·Journal of the American Geriatrics Society·Kai YeungKayne Mettert

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