Habit Reversal Therapy in Obsessive Compulsive Related Disorders: A Systematic Review of the Evidence and CONSORT Evaluation of Randomized Controlled Trials.

The study compared “self-help decoupling” (authors stating that parts of decoupling may be considered a variant of HRT, as they both interfere at the motor level of functioning) with “self-help progressive muscle relaxation (PMR).” Using an intention to treat analysis, borderline significant advantage was found in favor of HRT in regards to hair pulling symptoms on the Massachusetts General Hospital-Hair-Pulling Scale (MGH-HPS) ( p = 0.05), with medium to strong effect size.

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