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Depression Subscale of the Hospital Anxiety and Depression Scale applied preoperatively in spinal surgery
Asdrubal Falavigna1, Orlando Righesso, Alisson Roberto Teles
1Medical Faculty of the University of Caxias do Sul, Rua General Arcy da Rocha Nóbrega 401 / 602, Caxias do Sul, RS, Brazil. asdrubalmd@gmail.com
Objective:
To evaluate the accuracy of the Depression Subscale of Hospital Anxiety and Depression Scale (HADS-D) in spine surgery, comparing it to Beck Depression Inventory (BDI).
Methods:
In a cross-sectional study, the HADS-D and the BDI were applied to patients undergoing spine surgery for lumbar (n=139) or cervical spondylosis (n=17). Spearman correlation tests for HADS-D and BDI were applied. The internal consistency of HADS-D was estimated by Cronbach's alpha coefficient.
Results:
According to the BDI, the prevalence of depression was of 28.8% (n=45). The Spearman r coefficient between HADS-D and BDI was 0.714 (p<0.001). Cronbach's alpha for HADS-D was 0.795. The area of the ROC curve was 0.845. Using a cutoff for HADS-D >10, there was a sensitivity of 71.1%, specificity of 95.4%, and positive likelihood-ratio of 15.78.
Conclusions:
HADS-D showed a strong correlation with BDI and good reliability. HADS-D is a good alternative for screening depression and assessing its severity.
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