title: Young adult dependent coverage: were the state reforms effective?
abstract: OBJECTIVE
  To examine the robustness of findings regarding state-level adult dependent coverage expansions using detailed outcomes that specify coverage source.
  
  
  METHODS
  This study uses the 2001-2009 files of the Current Population Survey's Annual Social and Economic Supplement, covering calendar years 2000-2008, and considers young adults ages 19 through 29.
  
  
  METHODS
  Difference-in-differences methods were used to estimate the effect of state-level dependent coverage expansions on finely detailed categories of coverage, and falsification tests were used to evaluate the models themselves.
  
  
  RESULTS
  Certain published results on state-level parental coverage expansions are flawed, with reported increases driven by changes in spousal coverage. Other published results appear to be in fact driven by parental coverage, but they are not robust to alternative model adjustments.
  
  
  CONCLUSIONS
  This study shows evidence that one study's results on "dependent" coverage are in fact driven by changes in rates of spousal coverage. Results from a second study, though not robust to use of a more conventional DD model, would seem to apply most strongly to individuals at ages at which one would typically have lost parental coverage before reform, consistent with a "passive" effect rather than an "active" effect that enrolls previously uninsured youths.
authors.affiliation: School of Medicine, Department of Family and Preventive Medicine, Health Policy Division, University of California - San Diego, La Jolla, CA.
authors.forename: James R
authors.initials: JR
authors.lastname: Burgdorf
mesh_terms: D000328:Adult; D000367:Age Factors; D005260:Female; D018166:Health Care Reform; D006801:Humans; D019458:Insurance Coverage / Q000706:statistics & numerical data*; D008297:Male; D010290:Parents; D014481:United States; D055815:Young Adult
keywords: Health care reform; dependent coverage; health economics; health insurance regulation; health policy