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Colloquium credits

Presentation Master's thesis - Quincy van Kampen - Clinical Psychology

Colloquium credits

Presentation Master's thesis - Quincy van Kampen - Clinical Psychology

Last modified on 19-08-2025 11:27
Cost-Effectiveness Analysis of the Brief Intensive Trauma Treatment for Children and Adolescents
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event-summary.start-date
12-09-2025 12:00
event-summary.end-date
12-09-2025 13:00
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Roeterseilandcampus - Gebouw G, Straat: Nieuwe Achtergracht 129-B, Ruimte: GS.08. Vanwege beperkte zaalcapaciteit is deelname op basis van wie het eerst komt, het eerst maalt. Leraren moeten zich hieraan houden.

We conducted a cost-effectiveness analysis from a societal cost perspective comparing a 5-day PTSD treatment called the Brief Intensive Trauma Treatment for Children and Adolescents (BITT) to a waitlist control group (WL) over a three-month period. Adolescents with (subthreshold) PTSD (N = 55) were randomized, and PTSD and cost data were collected at baseline and three-month follow-up. For the main analyses, we calculated incremental cost ratios (ICERs), with various PTSD measures and quality-adjusted life years (QALYs) as health outcomes. We used a bootstrapping method to estimate the uncertainty, which was represented in cost-effectiveness planes. Cost-effectiveness acceptability curves (CEACs) showed the probability of BITT being cost-effective compared to WL at various levels of willingness to pay. The ICERs with PTSD health outcomes indicated that BITT is both more effective and more costly than WL. The CEACs indicated that substantial investments may be necessary for BITT to have at least an 80% probability of being cost-effective compared to WL (e.g., ~ €40,000 with PTSD diagnosis as health outcome). Given that we found a small to medium effect size for the CAPS-CA-5 severity score (Cohen’s d = 0.44, 95% CI [ -1.03, 0.15]), additional investment may be difficult to justify. Limitations such as the use of a subset of the data, which affected statistical power, and the fact that adolescents in the WL group were allowed to receive treatment may have contributed to the small effect size. Further research is needed to determine whether BITT is a cost-effective treatment option for adolescents with PTSD.