Utilities and QALYs
Utilities showed similar patterns across the three interventions throughout the 1 year follow-up period (Average utility through the year, according to (A) the 5-level EuroQol 5 Dimensions (EQ-5D-5L) and (B) the visual analogue scale (VAS). T0 = Baseline; T1 = after 4 weeks (4 sessions of STAIR + PE or PE or 12 sessions of i-PE); T2 = after 8 weeks (8 sessions of STAIR + PE or PE or 13 sessions of i-PE); T3 = after 16 weeks (i.e. post-treatment); T4 = 6 month follow-up (26 weeks); T5 = 12 month follow-up (52 weeks). PE, prolonged exposure; i-PE, intensified prolonged exposure; STAIR, Skills Training in Affective and Interpersonal Regulation.