title: Spillover Effects of the Affordable Care Act? Exploring the Impact on Young Adult Dental Insurance Coverage.
abstract: OBJECTIVE
  To assess whether the Affordable Care Act's (ACA) dependent coverage health insurance mandate had a spillover impact on young adult dental insurance coverage and whether any observed effects varied by household income.
  
  
  METHODS
  Medical Expenditure Panel Surveys from 2006 through 2011.
  
  
  METHODS
  We employed a difference-in-difference regression approach comparing changes in insurance rates for young adults ages 19-25 years to changes in insurance rates for adults ages 27-30 years. Separate regressions were estimated by categories of household income as a percentage of the Federal Poverty Level (FPL) to understand whether the mandate had heterogeneous spillover effects.
  
  
  RESULTS
  Private dental insurance increased by 6.7 percentage points among young adults compared to a control group of 27-30-year olds. Increases were concentrated at middle-income levels (125-400 percent FPL).
  
  
  CONCLUSIONS
  The dependent coverage mandate provision of the Affordable Care Act has not only increased health insurance rates among young adults but also dental insurance coverage rates.
authors.affiliation: Department of Health Management and Policy, University of Iowa, Iowa City, IA.
authors.forename: Dan M
authors.initials: DM
authors.lastname: Shane
authors.affiliation: Department of Health Management and Policy, University of Iowa, Iowa City, IA.
authors.forename: Padmaja
authors.initials: P
authors.lastname: Ayyagari
mesh_terms: D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D019458:Insurance Coverage / Q000191:economics / Q000706:statistics & numerical data*; D007347:Insurance, Dental / Q000191:economics / Q000706:statistics & numerical data*; D007348:Insurance, Health / Q000191:economics / Q000706:statistics & numerical data; D008297:Male; D017059:Models, Econometric; D058991:Patient Protection and Affordable Care Act / Q000331:legislation & jurisprudence*; D012111:Residence Characteristics; D012959:Socioeconomic Factors; D055815:Young Adult
keywords: Affordable Care Act; dental insurance; dependent coverage mandate