A Revised Version of Diabetes Quality of Life Instrument Maintaining Domains for Satisfaction, Impact, and Worry

Abstract

Background Diabetes quality of life (DQoL) instrument has been widely used to measure quality of life among diabetes patients. This study aimed to develop a revised version of DQoL instrument that incorporated issues of redundancies in the items and strengthen the basis of validity of the instrument. Methods This was a cross-sectional study where diabetes patients were recruited from December 1, 2014, until end of March 2015 at a public health clinic in Peninsular Malaysia. A questionnaire that included patients' information and DQoL instrument was distributed to patients. Item selection of DQoL instrument was conducted to screen and finalize the items based on issues of missing values and redundancy. Validity testing was conducted for the revised DQoL instrument based on exploratory factor analysis, confirmatory factor analysis, and Rasch analysis. Results The pattern structure matrix yielded three domains similar to the original version with 18 items. The minimum factor loading from the structure matrix was 0.358. The item's and person's reliability was excellent with 0.92 and 0.84 for “satisfaction” domain, 0.98 and 0.60 for “impact” domain, and 0.99 and 0.57 for “worry” domain, respectively. Confirmatory factor analysis has dropped 5 items and the revised version of DQoL contained 13 items. Composite reliability of the revised version was computed for “satisfaction” domain (0.922; 95% CI: 0.909–0.936), “impact” domain (0.781; 95% CI: 0.745–0.818), and “worry” domain (0.794; 95% CI: 0.755–0.832). Conclusion A revised version of DQoL that maintains the conceptualization of “satisfaction,” “impact,” and “worry” with 13 items was successfully developed.

Developing and validating the Arabic version of the Diabetes Quality of Life questionnaire

“…The results of the Arabic version were also compared with the Malaysian version of the DQoL questionnaire (16). The result of the present study resembled the 3-factor model of the Malaysian version, which consists only of 18 items, as more items were dropped that were identified as duplications, including (I14) "How often do you find yourself explaining what it means to have diabetes?…”

“…The only item that remained from the original vocational/social worry scale was W7, which was loaded in the new worry scale. A previous study had also reported a large amount of missing data in these items as they did not apply to many of the respondents (16). The new formulated Worry scale comprised 4 items that were converted from dichotomous questions to 5-Likert scale questions to be more suitable for EFA.…”

“…One widely used tool is the Diabetic Quality of Life (DQoL) questionnaire (13), which has demonstrated strong validity and reliability (14). The questionnaire has been translated into different languages and used in several countries including the United States of America (15), Malaysia (16), China (17), Turkey (18) and Spain (19). The DQoL questionnaire has been used in 82 studies (20); however, it has yet to be used in published studies in Arabic countries.…”

Pengaruh Medication Therapy Management (MTM) terhadap Tingkat Pengetahuan dan Kualitas Hidup Pasien Diabetes Melitus Di Puskesmas Kota Yogyakarta

“…Semakin tinggi nilai hasil kuesioner yang didapatkan maka semakin tinggi kualitas hidup pasien tersebut. Penelitian Bujang dkk., tahun 2018 menilai reliabilitas masing-masing domain adalah 0,92 (satisfaction), 0,78 (impact) dan 0,79 (worry) dengan nilai alfa ≥ 0.70 dan merupakan kuisioner yang valid (16).…”

Dapagliflozin effects on hospitalization for heart failure reduction, and major adverse cardiovascular events

“…In spite of being recommended for patients with CV and renal disease, SGLT-2i are currently under prescribed, and when they are prescribed they're being prescribed to the patients who are not likely to benefit the most. 7,8 The current review aimed to assess the mechanisms of action of dapagliflozin and its effects on HHF and MACE.…”