title: Mental health economics: current methodological issues.
abstract: BACKGROUND
  Investment in innovative mental health care services requires the use of scarce resources that could be used in alternative ways. Economic evaluation is essential to ensure that such an investment is appropriately compared with investment elsewhere.
  
  
  METHODS
  A non-systematic review of mental health evaluations identifies key methodological issues pertaining to economic studies.
  
  
  RESULTS
  Economic evaluations require the measurement and combination of costs and outcomes, and clarity about how this measurement is undertaken is required. Regarding costs, important considerations relate to the perspective to be taken (e.g., health service or societal), method of measurement (patient self-report or use of databases) and valuation (actual costs, fees or expenditure). Decision makers frequently need to compare evidence both within and between clinical areas and therefore there is a tension between the use of condition specific and generic outcome measures. Quality-adjusted life years are frequently used in economic evaluations, but their appropriateness in mental health care studies is still debated.
  
  
  CONCLUSIONS
  Economic evaluations in the area of mental health care are increasing in number and it is essential that researchers continue to develop and improve methods used to conduct such studies.
authors.affiliation: Health Service and Population Research Department, Institute of Psychiatry, King's College London, London, UK. paul.mccrone@kcl.ac.uk
authors.forename: P
authors.initials: P
authors.lastname: McCrone
mesh_terms: D017048:Health Care Costs; D006801:Humans; D001523:Mental Disorders / Q000191:economics* / Q000628:therapy*; D008603:Mental Health; D008605:Mental Health Services / Q000191:economics*; D019057:Quality-Adjusted Life Years