title: Variation in patient-reported quality among health care organizations.
abstract: Health care quality measurement initiatives often use health plans as the unit of analysis, but plans often contract with provider organizations that are managed independently. There is interest in understanding whether there is substantial variability in quality among such units. We evaluated the extent to which scores on the Consumer Assessment of Health Plans Study (CAHPS) survey vary across: health plans, regional service organizations (RSOs) (similar to independent practice associations [IPAs] and physician/hospital organizations [PHOs]), medical groups, and practice sites. There was significant variation among RSOs, groups and sites, with practice sites explaining the greatest share of variation for most measures.
authors.forename: Loel S
authors.initials: LS
authors.lastname: Solomon
authors.forename: Alan M
authors.initials: AM
authors.lastname: Zaslavsky
authors.forename: Bruce E
authors.initials: BE
authors.lastname: Landon
authors.forename: Paul D
authors.initials: PD
authors.lastname: Cleary
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002204:Capitation Fee; D005260:Female; D006123:Group Practice / Q000458:organization & administration / Q000592:standards*; D006801:Humans; D007193:Independent Practice Associations / Q000458:organization & administration / Q000592:standards*; D008297:Male; D008329:Managed Care Programs / Q000458:organization & administration / Q000592:standards*; D008404:Massachusetts; D008875:Middle Aged; D015233:Models, Statistical; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D011320:Primary Health Care / Q000458:organization & administration / Q000592:standards*; D019984:Quality Indicators, Health Care; D020414:Risk Sharing, Financial