title: Shared decision making coding systems: how do they compare in the oncology context?
abstract: OBJECTIVE
  The current study aimed to evaluate three coding systems which have been used to assess shared decision making in oncology consultations (OPTION, Decision Support Analysis Tool (DSAT) and Decision Analysis System for Oncology (DAS-O)): (i) comparing their ability to identify competencies of shared decision making, and (ii) determining their ability to predict patient outcomes in a single data set.
  
  
  METHODS
  Twenty oncologists from Australia and New Zealand participated in the IBCSG Trial 33-03. The consultations of 55 women with early stage breast cancer were audio-taped, transcribed and then coded using the OPTION, DAS-O and DSAT coding systems by three different raters. Women completed the questionnaires 2 weeks and 4 months after their consultation.
  
  
  RESULTS
  DAS-O was strongly correlated with OPTION (r=0.73). DSAT was moderately correlated with DAS-O and OPTION (r<0.6). Decisional satisfaction and satisfaction with doctor SDM skills were significantly correlated with OPTION (r=0.39 and 0.42 respectively) and the latter variable was correlated with DAS-O (r=0.40). These relationships persisted in multiple linear regression analyses.
  
  
  CONCLUSIONS
  OPTION may be the most efficient and sensitive coding system for research purposes; however, DSAT appeared to document behaviours reducing decisional conflict and both DSAT and DAS-O offer more detailed feedback to doctors.
  
  
  CONCLUSIONS
  Optimal coding system will depend on research goals and training purposes.
authors: Centre for Medical Psychology and Evidence-based Decision-making (CeMPED), School of Psychology, University of Sydney, Camperdown, NSW 2006, Australia. phyllisb@psych.usyd.edu.au
authors: Phyllis
authors: P
authors: Butow
authors: Ilona
authors: I
authors: Juraskova
authors: Sarah
authors: S
authors: Chang
authors: Anna-Lena
authors: AL
authors: Lopez
authors: Richard
authors: R
authors: Brown
authors: Jurg
authors: J
authors: Bernhard
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001315:Australia; D003657:Decision Making; D003661:Decision Support Techniques; D005260:Female; D005568:Forms and Records Control; D006801:Humans; D008297:Male; D008495:Medical Oncology; D008875:Middle Aged; D009520:New Zealand; D010358:Patient Participation / Q000523:psychology / Q000706:statistics & numerical data*; D017060:Patient Satisfaction; D018802:Patient-Centered Care; D010817:Physician-Patient Relations; D010820:Physicians; D017064:Process Assessment, Health Care / Q000379:methods*; D011594:Psychometrics; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D013637:Tape Recording