tailieunhanh - Báo cáo y học: " Dimensionality and scale properties of the Edinburgh Depression Scale (EDS) in patients with type 2 diabetes mellitus: the DiaDDzoB study"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Dimensionality and scale properties of the Edinburgh Depression Scale (EDS) in patients with type 2 diabetes mellitus: the DiaDDzoB study | de Cock et al. BMC Psychiatry 2011 11 141 http 1471-244X 11 141 BMC Psychiatry RESEARCH ARTICLE Open Access Dimensionality and scale properties of the Edinburgh Depression Scale EDS in patients with type 2 diabetes mellitus the DiaDDzoB study 13 t 1 1 1 Evi SA de Cock Wilco HM Emons Giesje Nefs Victor JM Pop and Franpois Pouwer Abstract Background Depression is a common complication in type 2 diabetes DM2 affecting 10-30 of patients. Since depression is underrecognized and undertreated it is important that reliable and validated depression screening tools are available for use in patients with DM2. The Edinburgh Depression Scale EDS is a widely used method for screening depression. However there is still debate about the dimensionality of the test. Furthermore the EDS was originally developed to screen for depression in postpartum women. Empirical evidence that the EDS has comparable measurement properties in both males and females suffering from diabetes is lacking however. Methods In a large sample N 1 656 of diabetes patients we examined 1 dimensionality 2 gender-related item bias and 3 the screening properties of the EDS using factor analysis and item response theory. Results We found evidence that the ten EDS items constitute a scale that is essentially one dimensional and has adequate measurement properties. Three items showed differential item functioning DIF two of them showed substantial DIF. However at the scale level DIF had no practical impact. Anhedonia the inability to be able to laugh or enjoy and sleeping problems were the most informative indicators for being able to differentiate between the diagnostic groups of mild and severe depression. Conclusions The EDS constitutes a sound scale for measuring an attribute of general depression. Persons can be reliably measured using the sum score. Screening rules for mild and severe depression are applicable to both males and females. Background Patients with type 2 diabetes .

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