***TASK***
the task is to simplify the input abstract of a biomedical literature

***INPUT***
the input is the abstract of a biomedical literature

***OUTPUT***
the output is the simplified abstract for the input abstract of a biomedical literature

***DOCUMENTATION***

***EXAMPLES***

Input: Eight studies (11 study comparisons) were identified, all of which compared cognitive and/or behavioural treatments versus treatment as usual control groups. Seven studies (ten comparisons) had usable data for meta-analyses. These studies demonstrated that patients receiving any variant of cognitive behavioural treatment exhibited significantly fewer symptoms post-treatment than those receiving treatment as usual (SMD -1.24, 95% CI -1.61 to -0.87, I² test for heterogeneity 33.4%). Different types of cognitive and/or behavioural treatments showed similar differences in effect when compared with treatment as usual. The overall treatment effect appeared to be influenced by differences in baseline severity. The findings of this review suggest that psychological treatments derived from cognitive behavioural models are an effective treatment for adult patients with obsessive compulsive disorder. Larger high quality randomised controlled trials involving longer follow up periods are needed, to further test cognitive behavioural treatments, and other psychological approaches, in comparison to each other and control conditions. Future trials should examine the predictors of response to each treatment, and also conduct cost-effectiveness evaluations.
Output:

We reviewed studies that compared psychological interventions to treatment as usual groups who either received no treatment, or were on a waiting list for treatment or received usual care. We found eight studies, which together suggested that cognitive and/or behavioural treatments were better than treatment as usual conditions at reducing clinical symptoms. Baseline OCD severity and depressive symptom level predicted the degree of response. However, the conclusions were based on a small number of randomised controlled trials with small sample sizes. There were no trials of other forms of psychological treatment such as psychodynamic therapy and client-centred therapy, and a lack of available evidence for the long-term effectiveness of psychological treatments.