Cost effectiveness of interventions for adults with social anxiety disorder: results of probabilistic analysis.

aExtended dominance occurs when an option is less effective and more costly than a linear combination of two alternative options.Interventions have been ranked from the most to least effective according to the number of QALYs gained.C&W: Clark and Wells model; GCBT: group cognitive behavioural therapy; ICBT: individually delivered cognitive behavioural therapy; ICER: Incremental Cost Effectiveness Ratio; IPT: interpersonal therapy; NMB: Net Monetary Benefit, estimated using a willingeness to pay £20,000/QALY; PDPT: psychodynamic psychotherapy; SA: Social Anxiety disorder; SHNS: self-help no support; SHWS: self-help with support.Mean values per person 5 years after end of treatment.