Faculty of Medicine, Department of Endocrinology and Metabolism, Celal Bayar University, Manisa, Turkey.
Acta Diabetol. 2010 Dec;47 Suppl 1:123-31. doi: 10.1007/s00592-009-0151-2. Epub 2009 Nov 20.
The aim of this study is to test the psychometric properties and the responsiveness of the original (status) version of Turkish DTSQ. The study sample included 88 patients with diabetes mellitus who were evaluated in three consecutive time points. The first data collection time point was during their initial contact to the clinic, and the two following (3rd month and 6th month) were during the monitoring visits to the Celal Bayar University Endocrinology Department in 2007. After the adaptation of the DTSQ to Turkish language by following standard procedures, this instrument was applied to the patients along with WBQ-12 and World Health Organization Quality of Life Measure (WHOQOL-Bref). The reliability of the DTSQ was evaluated by running internal consistency analysis (Cronbach Alpha) and item analysis. Construct validity of the instrument was evaluated by various tests such as Principal Components analysis, Confirmatory Factor Analysis, Concurrent validity and "Known Groups" comparisons. Finally the sensitivity (responsiveness to change) of the DTSQ scores to the changes of the metabolic conditions were assessed. 50.0% of the participants were male with a mean age of 51.1 ± 11.4 (min 22, max 78). Majority of them had type 2 diabetes (86.4%) and 72.7% of these patients had at least one co-morbid chronic conditions. While 53.4% of the patients had been treated by insulin the remaining 46.6% had been taking oral anti-diabetic agents. The results revealed satisfactory alpha values for DTSQ (α > 0.70). All of the three metabolic measures (i.e., FBG, PBG, and HbA1c) had significant correlations with the DTSQ scores. The criterion and construct validity of the scale were found to be very satisfactory. The Turkish version of the DTSQ showed acceptable fit indices (RMSEA = 0.03, CFI > 0.90) with the original (hypothetic) construct. Almost all of the sub-dimensions of the WBQ and WHOQOL were correlated with the DTSQ as expected, indicating a good concurrent validity. DTSQ status version was found to be a reliable and valid instrument for the assessment of treatment satisfaction in Turkish diabetes mellitus patients.
本研究旨在检验土耳其语 DTSQ 原始（现状）版本的心理测量特性和反应能力。研究样本包括 88 名糖尿病患者，他们在三个连续的时间点进行了评估。第一次数据收集时间是在他们首次就诊时，随后两次（第 3 个月和第 6 个月）是在 2007 年在 Celal Bayar 大学内分泌科的监测就诊期间。在遵循标准程序将 DTSQ 适用于土耳其语后，该工具与 WBQ-12 和世界卫生组织生活质量量表（WHOQOL-Bref）一起应用于患者。通过运行内部一致性分析（Cronbach Alpha）和项目分析来评估 DTSQ 的可靠性。通过主成分分析、验证性因素分析、同时效度和“已知组”比较等各种测试来评估工具的构念效度。最后，评估 DTSQ 评分对代谢状况变化的敏感性（反应能力）。参与者中有 50.0%为男性，平均年龄为 51.1 ± 11.4（最小 22，最大 78）。他们大多数患有 2 型糖尿病（86.4%），其中 72.7%的患者至少有一种合并的慢性疾病。53.4%的患者接受胰岛素治疗，其余 46.6%的患者服用口服抗糖尿病药物。结果显示，DTSQ 的 alpha 值令人满意（α>0.70）。所有三种代谢测量（即 FBG、PBG 和 HbA1c）与 DTSQ 评分均有显著相关性。该量表的标准和构念效度被证明非常令人满意。土耳其语版的 DTSQ 与原始（假设）结构具有可接受的拟合指数（RMSEA=0.03，CFI>0.90）。WBQ 和 WHOQOL 的几乎所有子维度都与 DTSQ 相关，这表明具有良好的同时效度。DTSQ 现状版本是评估土耳其糖尿病患者治疗满意度的可靠和有效工具。
