title: Mammography Use Among Medicare Beneficiaries After Elimination of Cost Sharing.
abstract: BACKGROUND
  We examined mammography use before and after Medicare eliminated cost sharing for screening mammography in January 2011.
  
  
  METHODS
  Using National Health Interview Survey data, we examined changes in mammography use between 2010 and 2013 among Medicare beneficiaries aged 65-74 years. Logistic regression and predictive margins were used to examine changes in use after adjusting for covariates.
  
  
  RESULTS
  In 2013, 74.7% of women reported a mammogram within 2 years, a 3.5 percentage point increase (95% confidence interval, -0.3, 7.2) compared with 2010. Increases occurred among women aged 65-69 years, unmarried women, and women with usual sources of care and 2-5 physician visits in the prior year. After adjustment, mammography use increased in 2013 versus 2010 (74.8% vs. 71.3%, P=0.039). Interactions between year and income, insurance, race, or ethnicity were not significant.
  
  
  CONCLUSIONS
  There was a modest increase in mammography use from 2010 to 2013 among Medicare beneficiaries aged 65-74 years, possibly consistent with an effect of eliminating Medicare cost sharing during this time. Findings suggest that eliminating cost sharing might increase use of recommended screening services.
authors.affiliation: *Division of Cancer Prevention and Control, Centers for Disease Control and Prevention, Atlanta, GA †Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD.
authors.forename: Susan A
authors.initials: SA
authors.lastname: Sabatino
authors.forename: Trevor D
authors.initials: TD
authors.lastname: Thompson
authors.forename: Gery P
authors.initials: GP
authors.lastname: Guy
authors.forename: Janet S
authors.initials: JS
authors.lastname: de Moor
authors.forename: Florence K
authors.initials: FK
authors.lastname: Tangka
mesh_terms: D000368:Aged; D001943:Breast Neoplasms / Q000000981:diagnostic imaging; D017047:Cost Sharing; D055088:Early Detection of Cancer / Q000191:economics / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D006306:Health Surveys; D006801:Humans; D008327:Mammography / Q000191:economics / Q000706:statistics & numerical data*; D017533:Marital Status; D008403:Mass Screening / Q000191:economics / Q000379:methods / Q000706:statistics & numerical data; D006278:Medicare / Q000191:economics / Q000706:statistics & numerical data*; D009819:Office Visits / Q000706:statistics & numerical data; D010342:Patient Acceptance of Health Care / Q000706:statistics & numerical data*; D014481:United States