title: Health State Utility Impact of Breast Cancer in U.S. Women Aged 18-44 Years.
abstract: BACKGROUND
  Breast cancer affects women's health-related quality of life negatively, but little is known about how breast cancer affects this in younger women aged 18-44 years. This study measures preference-based health state utility (HSU) values, a scaled index of health-related quality of life for economic evaluation, for younger women with breast cancer and compares these values with same-age women with other cancers and older women (aged ≥45 years) with breast cancer.
  
  
  METHODS
  Data from the 2009 and 2010 Behavioral Risk Factor Surveillance System were analyzed in 2014. The sample included 218,852 women; 7,433 and 18,577 had histories of breast and other cancers. HSU values were estimated using Healthy Days survey questions and a published mapping algorithm. Linear regression models for HSU were estimated by age group (18-44 and ≥45 years).
  
  
  RESULTS
  The adjusted breast cancer HSU impact was four times larger for younger women than for older women (-0.097 vs -0.024, p<0.001). For younger women, the effect of breast cancer on HSU was 70% larger than that of other cancers (-0.097 vs -0.057, p=0.024).
  
  
  CONCLUSIONS
  Younger breast cancer survivors reported lower HSU values than older survivors, highlighting the impact of breast cancer on the physical and mental health of younger women. The estimates may be used to evaluate quality-adjusted life-years or expectancy for prevention or treatment of breast cancer. This study also indicates that separate quality of life adjustments for women by age group are important for economic analysis of public health breast cancer interventions.
authors.affiliation: Brown School, Washington University in St. Louis, St. Louis, Missouri. Electronic address: dereksbrown@wustl.edu.
authors.forename: Derek S
authors.initials: DS
authors.lastname: Brown
authors.affiliation: Department of Health Policy and Management, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
authors.forename: Justin G
authors.initials: JG
authors.lastname: Trogdon
authors.affiliation: Division of Cancer Prevention and Control, CDC, Atlanta, Georgia.
authors.forename: Donatus U
authors.initials: DU
authors.lastname: Ekwueme
authors.affiliation: RTI International, Research Triangle Park, North Carolina.
authors.forename: Linda
authors.initials: L
authors.lastname: Chamiec-Case
authors.affiliation: Division of Cancer Prevention and Control, CDC, Atlanta, Georgia.
authors.forename: Gery P
authors.initials: GP
authors.lastname: Guy
authors.affiliation: Division of Cancer Prevention and Control, CDC, Atlanta, Georgia.
authors.forename: Florence K
authors.initials: FK
authors.lastname: Tangka
authors.affiliation: Division of Cancer Prevention and Control, CDC, Atlanta, Georgia.
authors.forename: Chunyu
authors.initials: C
authors.lastname: Li
authors.affiliation: Division of Cancer Prevention and Control, CDC, Atlanta, Georgia.
authors.forename: Katrina F
authors.initials: KF
authors.lastname: Trivers
authors.affiliation: Division of Cancer Prevention and Control, CDC, Atlanta, Georgia.
authors.forename: Juan L
authors.initials: JL
authors.lastname: Rodriguez
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D040343:Behavioral Risk Factor Surveillance System; D001943:Breast Neoplasms / Q000191:economics* / Q000453:epidemiology* / Q000523:psychology; D017281:Cost of Illness; D003365:Costs and Cost Analysis; D005260:Female; D006304:Health Status; D006801:Humans; D008603:Mental Health; D008875:Middle Aged; D011788:Quality of Life; D012959:Socioeconomic Factors; D014481:United States / Q000453:epidemiology; D016387:Women's Health; D055815:Young Adult