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Depression and anxiety in Parkinson's disease, metric properties of the Beck's depression and anxiety inventories. A K2 factorial design

Abstract:

Background: Study to investigate the concurrent validity of the Beck Depression Inventory and Beck Anxiety Inventory evaluation scales against the ICD-10. Methods: A K2 factorial design for studying the metrics properties of the BDI and BAI in parkinsonian outpatients. Results: 147 parkinsonian patients were included; 44 patients has anxiety and depression; only depression 19; only anxiety 31; finally 53 subjects don't have depression or anxiety. The BDI AUC was [0.858]. The BAI AUC was of [0.907]. The cut score was of 14/15 for the BDI and 13/14 for the BAI. The factorial design resulted in the two factors (depression and anxiety) has the best functional correlation in the regression. Conclusions: The results we present bear out this lack of dimensionality, since we found that the BDI AUC-measured discriminative ability for anxiety was [0.739]. With regard to the BAI, this is employed to discriminate the depressed, AUC values of [0.771].