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Table 3 Cost-effectiveness analysis and sensitivity analysis with flourishing as health outcome

From: Towards sustainable mental health promotion: trial-based health-economic evaluation of a positive psychology intervention versus usual care

Flourishing Total sample Alternative scenarios
   A B C
Costs, €a 239 196 617 223
Effect 0.19 0.19 0.19 0.20
ICER, €b 1245 1058 3240 1099
Distribution on the cost-effectiveness plane     
1st quadrant (northeast) 92 86 100 89
2nd quadrant (inferior: northwest) 0 0 0 0
3rd quadrant (southwest) 0 0 0 0
4th quadrant (superior: southeast) 8 14 0 11
WTP ceiling, %     
€ 0 12 18 4 14
€ 10,000 93 92 91 93
€ 20,000 97 97 96 97
€ 30,000 100 100 100 100
  1. Scenario A = adjustment of the per participant intervention costs, based on actual costs for counseling (the number of extensive emails sent by each participant multiplied by €17); scenario B = intervention costs raised from €222 to €600; scenario C = completers only analysis (n = 112 intervention group and n = 125 control group)
  2. aCosts per ‘disease-free’ year (i.e. one year in flourishing mental health) at 2014 prices
  3. bBootstrapped median, which is the 50th percentile of 2500 replications of the ICER