title: [Use of health resources and costs associated with the diagnosis and treatment of each episode of deep vein thrombosis and bleeding in patients undergoing orthopaedic surgery for hip or knee].
abstract: OBJECTIVE
  To determine the use of healthcare resources and costs associated with the diagnosis and treatment of thrombosis and bleeding patients who have undergone elective hip or knee replacement surgery, in routine clinical practice conditions.
  
  
  METHODS
  This multicentre observational and retrospective study extracted data from the medical records of three Spanish public hospitals (2010). Patients ≥ 40 years who had received prophylaxis-anticoagulation were included. They were randomised into three groups: a) control (no hospital complications), b) bleeding, and c) thrombosis. General variables, use of resources and costs were analysed.
  
  
  METHODS
  logistic regression and ANCOVA for model correction, (P<.05) was included.
  
  
  RESULTS
  A total of 141 patients (control: 60; bleeding: 60; and thrombosis: 21), with a mean age 68.7 (SD: 10.4) years, and 68.1% females were identified. Hip arthroplasty was more frequent (71.6%). The bleeding risk was associated with age (OR=1.1) and thrombosis with COPD (OR=1.8); P<.05). The average length of stay for the thrombosis, bleeding and control groups was 13.9, 11.5 and 7.4 days, respectively; P<.001). The total costs for each group were €10,484.3; €8,766.4 and €6,496.1 respectively; P<.05. All grouped results were comparable between them according to the hospital analysed and the type of replacement.
  
  
  CONCLUSIONS
  Costs were higher for thrombosis and bleeding patients, respectively. Costs were associated with length of stay and hospital-acquired infections.
authors.affiliation: Dirección de Planificación, Badalona Serveis Assistencials, Badalona, Barcelona, España. asicras@bsa.cat
authors.forename: A
authors.initials: A
authors.lastname: Sicras-Mainar
authors.forename: M
authors.initials: M
authors.lastname: De Salas-Cansado
authors.forename: M B
authors.initials: MB
authors.lastname: Ruiz-Antorán
authors.forename: D
authors.initials: D
authors.lastname: Cuesta-Peredo
authors.forename: I
authors.initials: I
authors.lastname: Lizano-Díez
authors.forename: L
authors.initials: L
authors.lastname: Betegón-Nicolas
authors.forename: R
authors.initials: R
authors.lastname: Navarro-Artieda
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000553:Ambulatory Care / Q000191:economics* / Q000706:statistics & numerical data; D019644:Arthroplasty, Replacement, Hip / Q000191:economics*; D019645:Arthroplasty, Replacement, Knee / Q000191:economics*; D005260:Female; D005500:Follow-Up Studies; D017721:Hospital Costs / Q000706:statistics & numerical data*; D006760:Hospitalization / Q000191:economics* / Q000706:statistics & numerical data; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis / Q000191:economics / Q000628:therapy; D019106:Postoperative Hemorrhage / Q000175:diagnosis / Q000191:economics* / Q000628:therapy; D012189:Retrospective Studies; D013030:Spain; D020246:Venous Thrombosis / Q000175:diagnosis / Q000191:economics* / Q000209:etiology / Q000628:therapy