The Inference-Based Approach (IBA) to the Treatment of Obsessive-Compulsive Disorder: An Open Trial Across Symptom Subtypes and Treatment-Resistant Cases

被引:23
作者
Aardema, Frederick [1 ,2 ]
O'Connor, Kieron P. [1 ,2 ]
Delorme, Marie-Eve [2 ]
Audet, Jean-Sebastien [1 ,2 ]
机构
[1] Univ Montreal, Dept Psychiat, Montreal, PQ, Canada
[2] Mental Hlth Univ Inst Montreal, Montreal, PQ, Canada
关键词
Obsessive-Compulsive Disorder; Inference-Based Approach; Cognitive-Behavioural Therapy; Overvalued Ideation; Treatment Outcome; COGNITIVE-BEHAVIORAL THERAPY; OVERVALUED IDEAS SCALE; TREATMENT OUTCOMES; BELIEFS; CONFUSION; SELF; DOUBT; OCD; SCHIZOTYPAL; INTRUSIONS;
D O I
10.1002/cpp.2024
中图分类号
B849 [应用心理学];
学科分类号
040203 [应用心理学];
摘要
The current open trial evaluated an inference-based approach (IBA) to the treatment of obsessive-compulsive disorder (OCD) across symptom subtypes and treatment-resistant cases. Following formal diagnosis through semi-structured interview by an independent evaluator, a total of 125 OCD participants across five major symptom subtypes entered a program of 24 sessions of treatment based on the IBA. An additional group of 22 participants acted as a natural wait-list control group. Participants were administered the Yale-Brown Obsessive-Compulsive Scale before and after treatment as the principal outcome measure, as well as measures of negative mood states, inferential confusion and obsessive beliefs. Level of overvalued ideation was assessed clinically at pre-treatment using the Overvalued Ideation Scale. After 24weeks of treatment, 102 treatment completers across all major subtypes of OCD showed significant reductions on the Yale-Brown Obsessive-Compulsive Scale with effect sizes ranging from 1.49 to 2.53 with a clinically significant improvement in 59.8% of participants. No improvement was observed in a natural wait-list comparison group. In addition, IBA was effective for those with high levels of overvalued ideation. Change in inferential confusion and beliefs about threat and responsibility were uniquely associated with treatment outcome. The study is the first large-scale open trial showing IBA to be effective across symptom subtypes and treatment-resistant cases. The treatment may be particularly valuable for those who have previously shown an attenuated response to other treatments. Copyright (c) 2016 John Wiley & Sons, Ltd.
引用
收藏
页码:289 / 301
页数:13
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