Pierre Savard

A randomized clinical trial of cognitive-behavioral therapy and applied relaxation for adults with generalized anxiety disorder.

This randomized clinical trial compared cognitive-behavioral therapy (CBT), applied relaxation (AR), and wait-list control (WL) in a sample of 65 adults with a primary diagnosis of generalized anxiety disorder (GAD). The CBT condition was based on the intolerance of uncertainty model of GAD, whereas the AR condition was based on general theories of anxiety. Both manualized treatments were administered over 12 weekly 1-hour sessions. Standardized clinician ratings and self-report questionnaires were used to assess GAD and related symptoms at pretest, posttest, and at 6-, 12-, and 24-month follow-ups. At posttest, CBT was clearly superior to WL, AR was marginally superior to WL, and CBT was marginally superior to AR. Over follow-up, CBT and AR were equivalent, but only CBT led to continued improvement. Thus, direct comparisons of CBT and AR indicated that the treatments were comparable; however, comparisons of each treatment with another point of reference (either waiting list or no change over follow-up) provided greater support for the efficacy of CBT than AR.

Cognitive-Behavioral Treatment for Panic Disorder With Agoraphobia A Randomized, Controlled Trial and Cost-Effectiveness Analysis

A randomized, controlled trial was conducted to examine the cost-effectiveness of cognitive-behavioral treatment (CBT) for panic disorder with agoraphobia. A total of 100 participants were randomly assigned to standard (n = 33), group (n = 35), and brief (n = 32) treatment conditions. Results show significant clinical and statistical improvement on standard symptom measures and quality of life from baseline to posttreatment and 3-month follow-up, with no significant differences between treatment conditions. Compared with standard CBT, brief and group CBT incurred lower treatment costs and had a superior cost-effectiveness ratio, suggesting the potential of these alternative treatment conditions in increasing access to effective treatment.

Cognitive-behavioural, pharmacological and psychosocial predictors of outcome during tapered discontinuation of benzodiazepine.

Eighty-six participants wishing to stop benzodiazepine and who met DSM-IV (Diagnostic and Statistical Manual of Mental Disorders, 4th ed. American Psychological Association, 1994) criteria for anxiety disorder or insomnia were assessed pre- and post-taper on clinical, pharmacological and psychosocial measures. An initial cohort of 41 participants received treatment as usual (taper only) plus physician counselling in the same clinic setting. A second cohort of 45 participants were randomly allocated to group cognitive-behavioural therapy (CBT) plus taper, or group support (GS) plus taper. At 3 months follow-up, the outcomes in both the CBT and the GS subgroups were equivalent. Intention to treat analysis revealed a slight advantage to the CBT over the GS group and the CBT group showed higher self-efficacy post-taper.Over all 86 participants, a high-baseline level of psychological distress, anxiety and dosage predicted a poor outcome, but increase in self-efficacy contributed to a successful outcome particularly in those with initially poor baseline predictors. Although there was a decrease in positive affect during preliminary stages of tapered discontinuation compared to baseline, there was no significant overall increase in negative affect.

Interpretive style and intolerance of uncertainty in individuals with anxiety disorders: a focus on generalized anxiety disorder.

Interpretations of negative, positive, and ambiguous situations were examined in individuals with generalized anxiety disorder (GAD), other anxiety disorders (ANX), and no psychiatric condition (CTRL). Additionally, relationships between specific beliefs about uncertainty (Uncertainty Has Negative Behavioral and Self-Referent Implications [IUS-NI], and Uncertainty Is Unfair and Spoils Everything [IUS-US]) and interpretations were explored. The first hypothesis (that the clinical groups would report more concern for negative, positive, and ambiguous situations than would the CTRL group) was supported. The second hypothesis (that the GAD group would report more concern for ambiguous situations than would the ANX group) was not supported; both groups reported similar levels of concern for ambiguous situations. Exploratory analyses revealed no differences between the GAD and ANX groups in their interpretations of positive and negative situations. Finally, the IUS-US predicted interpretations of negative and ambiguous situations in the full sample, whereas the IUS-NI did not. Clinical implications are discussed.