The Efficacy and Effectiveness of Online CBT - Jeroen Ruwaard

94 Chapter 5. Online CBT of Bulimic Symptoms(n = 65) had received earlier treatment. Primary measures indicated moderate-toseverebulimic symptoms (cf. Table 5.2). The vast majority (80%; n = 84) engagedin purging behavior to compensate for regular binge eating. Symptoms appearedto be more severe in the online CBT group. However, these differences were notsignificant (EDE-Q/BAT: largest ANOVA F 2,102 =2.1,P = .12, Binge eating/Purging:largest Kruskal-Wallis χ 2 df=2 = 4.3, P = .11). Comorbid symptoms were mild, asmeasured by participants’ scores on the Depression Anxiety Stress Scales, which wereslightly above clinical cut-offs of the subscales of this measure (cf. Table 5.1).Recruited(n = 273)Not assessed (n = 91)45 did not start46 screening dropoutAssessed foreligibility(n = 182)Randomized(n = 105)Excluded (n = 77)15 no consent11 no compensatory behaviour11 bmi