@article{Yutrirak_Ratta-apha_Dankulchai_Pukrittayakamee_2021, title={Psychometric Properties of the PHQ-9, HADS, and CES-D Questionnaires and the Prevalence of Depression in Patients with Cancer Receiving Radiotherapy}, volume={73}, url={https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/254587}, DOI={10.33192/Smj.2021.103}, abstractNote={<p><strong>Objective:</strong> The primary aim was to compare the psychometric properties among the Patient Health Questionnaire (PHQ-9) (both including and excluding somatic symptom items), the depression subscale of the Hospital Anxiety and Depression Scale (HADS-D), and the Center for Epidemiologic Studies Depression Scale (CES-D) in detecting depression in cancer patients receiving radiotherapy. The secondary aim was to investigate the prevalence of depression in this group of patients.<br><strong>Materials and Methods:</strong> Overall, 198 participants with cancer diagnosis from a radiology clinic took part in the study. They completed PHQ-9, HADS-D, and CES-D questionnaires and were interviewed in line with the Mini-International Neuropsychiatric Interview (M.I.N.I.) to confirm the diagnosis. The PHQ-9 was analyzed for three scoring methods: sum-score, inclusive (including all items), and exclusive (excluding 4 somatic symptom items) methods. The psychometric properties of each questionnaire were analyzed. The prevalence of depression measured by the M.I.N.I. was evaluated.<br><strong>Results:</strong> The sum-score method of the PHQ-9 had an equal sensitivity (100%) to the HADS-D and CES-D, and had a slightly higher specificity (91.1%) than the HADS-D (87.4%) and CES-D (90.6%). When compared results within the PHQ-9, the sum-score method had greater sensitivity than the inclusive (71.4%) and exclusive (42.9%) methods, and had a slightly lower specificity than the inclusive (96.9%) and exclusive (97.4%) methods. The prevalence of depression assessed by the M.I.N.I was 3.5%.<br><strong>Conclusion:</strong> The sum-score method of the PHQ-9 seemed to be the best tool to use for depression screening in cancer patients receiving radiotherapy due to its excellent sensitivity and specificity.</p>}, number={12}, journal={Siriraj Medical Journal}, author={Yutrirak, Kantanut and Ratta-apha, Woraphat and Dankulchai, Pittaya and Pukrittayakamee, Panate}, year={2021}, month={Dec.}, pages={793–800} }