Lan-Fang Hsu1, Ching-Chiu Kao2, Mei-Yeh Wang3, Chun-Jen Chang4, Pei-Shan Tsai5. 1. Graduate Institute of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan. 2. Department of Nursing, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan. 3. Department of Nursing, Cardinal Tien College of Healthcare and Management, New Taipei City, Taiwan. 4. Department of Endocrinology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan. 5. Graduate Institute of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan; Department of Nursing, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Sleep Science Center, Taipei Medical University Hospital, Taipei, Taiwan. Electronic address: ptsai@tmu.edu.tw.
Abstract
BACKGROUND: The Clinically Useful Depression Outcome Scale (CUDOS) is a self-report instrument that assesses symptoms and the severity of depression, but its psychometric properties in patients with type 2 diabetes mellitus in Chinese-Speaking populations are unknown. OBJECTIVES: To examine the psychometric properties of the Mandarin Chinese version of the CUDOS (CUDOS-Chinese). DESIGN: A methodological research design. SETTING: Endocrinology and metabolism outpatient clinics at 2 university-affiliated hospitals in northern Taiwan. PARTICIPANTS: Two-hundred and fourteen type 2 diabetic patients with the mean age of 62.6 years were enrolled, and two-hundred and twelve of them completed the study. METHODS: Internal consistency, test-retest reliability, concurrent, and contrasted-groups validity were assessed. A receiver operating characteristic curve analysis was performed to assess sensitivity and specificity. Construct validity by means of confirmatory factor analysis was conducted. RESULTS: Internal consistency (Cronbach α of total scale and four subscales=0.93, 0.80, 0.66, 0.80, and 0.83, respectively), test-retest reliability (intra-class correlation coefficients of total scale and four subscales=0.92, 0.89, 0.94, 0.89, and 0.91, respectively), and strong correlations with the Beck Depression Inventory-II (r=0.87) suggested good reliability and validity. The confirmatory factor analysis supported a four-factor model. A cut-off score of 19/20 yielded 77.8% sensitivity and 75.6% specificity. CONCLUSIONS: The CUDOS-Chinese demonstrated satisfactory validity and reliability for detecting depression in type 2 diabetic patients in Taiwan.
BACKGROUND: The Clinically Useful Depression Outcome Scale (CUDOS) is a self-report instrument that assesses symptoms and the severity of depression, but its psychometric properties in patients with type 2 diabetes mellitus in Chinese-Speaking populations are unknown. OBJECTIVES: To examine the psychometric properties of the Mandarin Chinese version of the CUDOS (CUDOS-Chinese). DESIGN: A methodological research design. SETTING: Endocrinology and metabolism outpatient clinics at 2 university-affiliated hospitals in northern Taiwan. PARTICIPANTS: Two-hundred and fourteen type 2 diabeticpatients with the mean age of 62.6 years were enrolled, and two-hundred and twelve of them completed the study. METHODS: Internal consistency, test-retest reliability, concurrent, and contrasted-groups validity were assessed. A receiver operating characteristic curve analysis was performed to assess sensitivity and specificity. Construct validity by means of confirmatory factor analysis was conducted. RESULTS: Internal consistency (Cronbach α of total scale and four subscales=0.93, 0.80, 0.66, 0.80, and 0.83, respectively), test-retest reliability (intra-class correlation coefficients of total scale and four subscales=0.92, 0.89, 0.94, 0.89, and 0.91, respectively), and strong correlations with the Beck Depression Inventory-II (r=0.87) suggested good reliability and validity. The confirmatory factor analysis supported a four-factor model. A cut-off score of 19/20 yielded 77.8% sensitivity and 75.6% specificity. CONCLUSIONS: The CUDOS-Chinese demonstrated satisfactory validity and reliability for detecting depression in type 2 diabeticpatients in Taiwan.
Authors: Johanna W de Joode; Susan E M van Dijk; Florine S Walburg; Judith E Bosmans; Harm W J van Marwijk; Michiel R de Boer; Maurits W van Tulder; Marcel C Adriaanse Journal: PLoS One Date: 2019-06-20 Impact factor: 3.240
Authors: Susan E M van Dijk; Marcel C Adriaanse; Lennart van der Zwaan; Judith E Bosmans; Harm W J van Marwijk; Maurits W van Tulder; Caroline B Terwee Journal: Qual Life Res Date: 2018-02-02 Impact factor: 4.147