title: A comparative study of unscheduled hospital readmissions in a resident-staffed teaching service and a hospitalist-based service.
abstract: BACKGROUND
  The rate of unscheduled readmissions is an important quality indicator with financial implications for hospitals.
  
  
  OBJECTIVE
  To determine if resident-staffed services have more favorable outcomes compared to hospitalist services, predictors of readmissions were determined within an academic hospital.
  
  
  METHODS
  From November 1, 2006 to April 30, 2007, 5943 admissions were assigned to a resident-staffed teaching service (n = 2244) or to a hospitalist-based service (n = 3699). Data on age, race, sex, insurance status, case mix index (CMI), length of stay (LOS), and unscheduled hospital readmission within 30 days were analyzed.
  
  
  RESULTS
  Patients admitted to the hospitalist service were older and more likely to be female compared with those admitted to the teaching service. There were no significant differences in the health care insurance carrier of the patients admitted to the two services. The rate of unscheduled hospital readmissions within 30 days was significantly higher in the teaching service compared to the hospitalist service (14.1% vs 10.4%; P < 0.001). LOS was significantly higher (4.95 +/- 7.77 vs 4.14 +/- 5.95; P < 0.001), and the CMI was significantly lower (1.04 +/- 0.94 vs 1.14 +/- 1.02; P < 0.001) in the hospitalist service compared to the resident-staffed service. Probability of readmission was significantly reduced with increasing LOS and discharge home with self care.
  
  
  CONCLUSIONS
  The modestly increased unscheduled readmission rate to the resident-staffed service compared to the hospitalist service may be related to lower LOS. Increased CMI of patients in the resident service may have contributed to the increased rate of readmissions.
authors.affiliation: Department of Medicine, University of Florida-College of Medicine at Jacksonville, Jacksonville, FL 32209, USA. carlos.palacio@jax.ufl.edu
authors.forename: Carlos
authors.initials: C
authors.lastname: Palacio
authors.forename: Irene
authors.initials: I
authors.lastname: Alexandraki
authors.forename: Jeffrey
authors.initials: J
authors.lastname: House
authors.forename: Arshag D
authors.initials: AD
authors.lastname: Mooradian
mesh_terms: D016009:Chi-Square Distribution; D003953:Diagnosis-Related Groups; D005260:Female; D020445:Hospitalists / Q000191:economics; D006801:Humans; D007396:Internship and Residency / Q000191:economics; D007902:Length of Stay / Q000191:economics / Q000706:statistics & numerical data; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D010359:Patient Readmission / Q000191:economics / Q000706:statistics & numerical data*; D019984:Quality Indicators, Health Care; D012307:Risk Factors