“…Some studies have indicated that higher levels of comorbid depressive symptoms are associated with worse treatment outcome for both PD (Brown et al, 1995) and SAD (Chambless, Tran, & Glass, 1997). Others, however, have not found this relationship (Aaronson et al, 2008;Allen et al, 2010;Dow et al, 2007a;Kampman, Keijsers, Hoogduin, & Hendriks, 2008), and reviews of the literature are inconclusive regarding the effect of comorbid depression on treatment outcome for PD and SAD (Eskildsen et al, 2010;McCabe & Gifford, 2008). The results are also equivocal regarding the influence of comorbid personality disorders, which have been found to be a predictor of worse outcome in some studies (Steketee, Chambless, & Tran, 2001;Telch, Kamphuis, & Schmidt, 2011;Van Velzen, Emmelkamp, & Scholing, 1997) but not in others (Kampman et al, 2008).…”