title: Reprocessing data to form QALYs.
abstract: OBJECTIVE
  To determine whether reprocessing data from published sources into quality adjusted life years (QALYs), as recommended in The QALY Toolkit, is a useful method of helping purchasing authorities to determine the most cost effective pattern of care to buy for their populations.
  
  
  METHODS
  United Kingdom.
  
  
  METHODS
  The method was tested for six elective surgical conditions; data from published studies were reprocessed into the Rosser index, to obtain values for change in quality of life. These were then used to form QALYs. A small validation exercise was carried out.
  
  
  METHODS
  QALYs formed from the Rosser index.
  
  
  RESULTS
  Published data could not be found for three interventions (cataract surgery, inguinal hernia repair, varicose vein surgery). For the remainder (prostatectomy, hip replacement, and knee replacement) data were found which could be reprocessed to form QALYs, though it was often hard to compare data from different studies and many assumptions had to be made.
  
  
  CONCLUSIONS
  The value of QALY results obtained by this method is questionable, given the large number of assumptions which had to be made. For many interventions published data are unlikely to be available.
authors.affiliation: Department of Epidemiology and Public Health Medicine, University of Bristol.
authors.forename: J
authors.initials: J
authors.lastname: Coast
mesh_terms: D000368:Aged; D003362:Cost-Benefit Analysis; D005260:Female; D006622:Hip Prosthesis / Q000191:economics; D006801:Humans; D007720:Knee Prosthesis / Q000191:economics; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery; D011468:Prostatectomy / Q000191:economics; D011470:Prostatic Hyperplasia / Q000601:surgery; D011788:Quality of Life; D013222:State Medicine / Q000191:economics*; D013514:Surgical Procedures, Operative / Q000191:economics*; D006113:United Kingdom; D026712:Value of Life