BACKGROUND: The aims of the present study were to explore whether symptoms in different anxiety disorders are associated with Cloninger's model temperament dimensions novelty seeking (NS), harm avoidance (HA), reward dependence and persistence compared with control subjects in clinical samples of adults or late adolescents. METHOD: Literature search in the following databases: Cochrane Library, PubMed (Medline), Web of Science, Psycinfo and PsycArticles. Systematic review, grading the level of evidence and meta-analysis for each disorder by comparing the temperament dimension scores between patient and control samples in single studies. RESULTS: A total of 40 papers fulfilled the inclusion criteria. Meta-analyses were conducted on a total of 24 studies focusing on panic disorder (PD), social anxiety disorder (SAD) and obsessive-compulsive disorder (OCD). The primary finding was a constant and clinically marked positive association between the HA temperament dimension and symptoms of PD, SAD and OCD, with a most marked effect in SAD, and a moderate effect in OCD and PD. Second, less marked and clinically marginal associations between NS score and SAD and OCD (negative associations), but no associations with PD were observed. The meta-analyses revealed heterogeneity between the results of individual studies, especially in the analyses including SAD and OCD. CONCLUSIONS: PD, SAD and OCD share a marked and state-dependent avoidant behavioral pattern, which is common for all anxiety disorders. However, PD showed a different pattern of arousal to novel stimuli from that of SAD and OCD. The findings are state dependent and based on cross-sectional studies.
BACKGROUND: The aims of the present study were to explore whether symptoms in different anxiety disorders are associated with Cloninger's model temperament dimensions novelty seeking (NS), harm avoidance (HA), reward dependence and persistence compared with control subjects in clinical samples of adults or late adolescents. METHOD: Literature search in the following databases: Cochrane Library, PubMed (Medline), Web of Science, Psycinfo and PsycArticles. Systematic review, grading the level of evidence and meta-analysis for each disorder by comparing the temperament dimension scores between patient and control samples in single studies. RESULTS: A total of 40 papers fulfilled the inclusion criteria. Meta-analyses were conducted on a total of 24 studies focusing on panic disorder (PD), social anxiety disorder (SAD) and obsessive-compulsive disorder (OCD). The primary finding was a constant and clinically marked positive association between the HA temperament dimension and symptoms of PD, SAD and OCD, with a most marked effect in SAD, and a moderate effect in OCD and PD. Second, less marked and clinically marginal associations between NS score and SAD and OCD (negative associations), but no associations with PD were observed. The meta-analyses revealed heterogeneity between the results of individual studies, especially in the analyses including SAD and OCD. CONCLUSIONS:PD, SAD and OCD share a marked and state-dependent avoidant behavioral pattern, which is common for all anxiety disorders. However, PD showed a different pattern of arousal to novel stimuli from that of SAD and OCD. The findings are state dependent and based on cross-sectional studies.
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