title: [Risk adjustment in quality comparison - why hierarchical models?].
authors.affiliation: Berner Fachhochschule, Fachbereich Gesundheit.
authors.forename: Dirk
authors.initials: D
authors.lastname: Richter
mesh_terms: D000058:Accidental Falls / Q000706:statistics & numerical data; D003430:Cross-Sectional Studies; D006761:Hospitals / Q000592:standards* / Q000706:statistics & numerical data*; D006801:Humans; D015233:Models, Statistical; D003668:Pressure Ulcer / Q000453:epidemiology; D019984:Quality Indicators, Health Care / Q000592:standards* / Q000706:statistics & numerical data*; D011787:Quality of Health Care / Q000592:standards* / Q000706:statistics & numerical data*; D020379:Risk Adjustment / Q000592:standards* / Q000706:statistics & numerical data*; D013557:Switzerland