https://www.selleckchem.com/pr....oducts/NVP-TAE684.ht
To investigate the psychometric properties of the Hospital Anxiety and Depression Scale (HADS) and 10-item Perceived Stress Scale (PSS-1 in patients with periodontitis and to evaluate the psychological features of patients with periodontitis. Overall, 460 individuals with periodontitis were enrolled. The HADS and the PSS-10 were administered to all patients. Methodology testing included the exploratory factor analysis, the confirmatory factor analysis (CFA), test-retest reliability, as well as internal consistency. Regarding the CF
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