Page 92 - The efficacy and effectiveness of psychological treatments for eating disorders - Elske van den Berg

92 Chapter 4
Cost effectiveness
The cost-effectiveness plane and the CEAC for all patients, with eating disorder remission (EDE-Q global score < 2.77) as effect measure indicates a 41% likelihood of CBT-E being more effective at higher treatment costs and a 56% likelihood of less effects at more costs. The probability of being cost-effective based on the CEAC is < 25% for all WTPs (figures not shown).
Employing healthy weight (BMI ≥18.5) as effect measure, ICERs distribution was radically different and indicates a 97% likelihood of CBT-E being superior to TAU, albe- it at higher treatment costs, see Figure 2. The CEAC indicates a probable preference for CBT-E (>50% probability of cost-effectiveness), assuming a WTP of € 9713,- or more for an extra remission. Examining outpatients only, the superiority of CBT-E over TAU is even stronger, on healthy weight, but also on eating disorder remission, see supplementary material.
FIGURE 2
Cost-effectiveness plane and cost-acceptability curve of the base case scenario with reaching healthy weight (BMI ≥18.5) as effect parameter (all patients)
Discussion
This study examined effectiveness and cost-effectiveness for anorexia nervosa patients after implementing cognitive behavior therapy-enhanced (CBT-E), a recom- mended specialized treatment, throughout a routine inpatient and outpatient setting. For this purpose, two cohorts were compared, one receiving regular treatment-