title: Development of a charge adjustment model for cardiac catheterization.
abstract: A methodology that would allow for comparison of charges across institutions has not been developed for catheterization in congenital heart disease. A single institution catheterization database with prospectively collected case characteristics was linked to hospital charges related and limited to an episode of care in the catheterization laboratory for fiscal years 2008-2010. Catheterization charge categories (CCC) were developed to group types of catheterization procedures using a combination of empiric data and expert consensus. A multivariable model with outcome charges was created using CCC and additional patient and procedural characteristics. In 3 fiscal years, 3,839 cases were available for analysis. Forty catheterization procedure types were categorized into 7 CCC yielding a grouper variable with an R (2) explanatory value of 72.6%. In the final CCC, the largest proportion of cases was in CCC 2 (34%), which included diagnostic cases without intervention. Biopsy cases were isolated in CCC 1 (12%), and percutaneous pulmonary valve placement alone made up CCC 7 (2%). The final model included CCC, number of interventions, and cardiac diagnosis (R (2) = 74.2%). Additionally, current financial metrics such as APR-DRG severity of illness and case mix index demonstrated a lack of correlation with CCC. We have developed a catheterization procedure type financial grouper that accounts for the diverse case population encountered in catheterization for congenital heart disease. CCC and our multivariable model could be used to understand financial characteristics of a population at a single point in time, longitudinally, and to compare populations.
authors.affiliation: Department of Cardiology, Children's Hospital Boston, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA.
authors.forename: Andrew
authors.initials: A
authors.lastname: Brennan
authors.forename: Kimberlee
authors.initials: K
authors.lastname: Gauvreau
authors.forename: Jean
authors.initials: J
authors.lastname: Connor
authors.forename: Cheryl
authors.initials: C
authors.lastname: O'Connell
authors.forename: Sthuthi
authors.initials: S
authors.lastname: David
authors.forename: Melvin
authors.initials: M
authors.lastname: Almodovar
authors.forename: James
authors.initials: J
authors.lastname: DiNardo
authors.forename: Puja
authors.initials: P
authors.lastname: Banka
authors.forename: John E
authors.initials: JE
authors.lastname: Mayer
authors.forename: Audrey C
authors.initials: AC
authors.lastname: Marshall
authors.forename: Lisa
authors.initials: L
authors.lastname: Bergersen
mesh_terms: D006328:Cardiac Catheterization / Q000191:economics*; D039702:Current Procedural Terminology; D003953:Diagnosis-Related Groups / Q000706:statistics & numerical data; D017722:Hospital Charges; D006801:Humans; D018803:Models, Economic; D015895:Relative Value Scales
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