title: Validation of the University HealthSystem Consortium administrative dataset: concordance and discordance with patient-level institutional data.
abstract: BACKGROUND
  The University HealthSystem Consortium Clinical Database-Resource Manager (UHC CD-RM) is an administrative database increasingly queried for both research and administrative purposes, but it has not been comprehensively validated. To address this knowledge gap, we compared the UHC CD-RM with an institutional dataset to determine its validity and accuracy.
  
  
  METHODS
  Age, gender, and date of operation were used to identify patients undergoing pancreaticoduodenectomy from 2009-2011 in both the UHC CD-RM and our institutional pancreatic surgery database. Patient- and intervention-specific variables including perioperative mortality, complications, length of stay, discharge disposition, and readmission were compared between datasets.
  
  
  RESULTS
  A total of 107 UHC CD-RM and 105 institutional patients met inclusion criteria. In both datasets 103 matched cases were present. Between the 103 matched cases, there was concordance with respect to median age (P = 0.87), gender (P = 0.89), race (P = 0.84), overall length of stay (P = 0.46), discharge disposition (P = 0.95), 30-d readmission rate (P = 0.87), and 30-d mortality (P = 0.70). Most comorbidities and complications were captured; however, several disease-specific complications were absent within the UHC CD-RM.
  
  
  CONCLUSIONS
  Most of the clinically significant patient- and intervention-specific variables within the UHC CD-RM are reliably reported. With recognition of its limitations, the UHC CD-RM is a reliable surrogate for institutional medical records and should be considered a valuable research tool for health service researchers.
authors.affiliation: Cincinnati Research on Outcomes and Safety in Surgery (CROSS), Department of Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio.
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Sutton
authors.affiliation: Cincinnati Research on Outcomes and Safety in Surgery (CROSS), Department of Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio.
authors.forename: Anthony J
authors.initials: AJ
authors.lastname: Hayes
authors.affiliation: Cincinnati Research on Outcomes and Safety in Surgery (CROSS), Department of Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio.
authors.forename: Gregory C
authors.initials: GC
authors.lastname: Wilson
authors.affiliation: Cincinnati Research on Outcomes and Safety in Surgery (CROSS), Department of Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio.
authors.forename: Ralph C
authors.initials: RC
authors.lastname: Quillin
authors.affiliation: Cincinnati Research on Outcomes and Safety in Surgery (CROSS), Department of Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio.
authors.forename: Koffi
authors.initials: K
authors.lastname: Wima
authors.affiliation: Clinical Research Division, University HealthSystem Consortium, Chicago, Illinois.
authors.forename: Samuel
authors.initials: S
authors.lastname: Hohmann
authors.affiliation: Cincinnati Research on Outcomes and Safety in Surgery (CROSS), Department of Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio.
authors.forename: Ian M
authors.initials: IM
authors.lastname: Paquette
authors.affiliation: Cincinnati Research on Outcomes and Safety in Surgery (CROSS), Department of Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio.
authors.forename: Jeffrey J
authors.initials: JJ
authors.lastname: Sussman
authors.affiliation: Cincinnati Research on Outcomes and Safety in Surgery (CROSS), Department of Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio.
authors.forename: Syed A
authors.initials: SA
authors.lastname: Ahmad
authors.affiliation: Cincinnati Research on Outcomes and Safety in Surgery (CROSS), Department of Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio.
authors.forename: Shimul A
authors.initials: SA
authors.lastname: Shah
authors.affiliation: Cincinnati Research on Outcomes and Safety in Surgery (CROSS), Department of Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio. Electronic address: abbottdl@ucmail.uc.edu.
authors.forename: Daniel E
authors.initials: DE
authors.lastname: Abbott
mesh_terms: D000368:Aged; D015897:Comorbidity; D016208:Databases, Factual / Q000592:standards*; D003710:Demography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016577:Pancreaticoduodenectomy / Q000706:statistics & numerical data; D010359:Patient Readmission / Q000706:statistics & numerical data; D011183:Postoperative Complications / Q000453:epidemiology
keywords: Clinical database; Outcomes research; Readmission; UHC; University HealthSystem Consortium; Validation