Validation of the LITHUANIAN version of the 19-item audit of diabetes dependent quality of life (ADDQOL – LT) questionnaire in patients with diabetes (original) (raw)
Related papers
Bulgarian version of the Audit of Diabetes-Dependent Quality of Life (ADDQoL-19)
Biotechnology & Biotechnological Equipment, 2017
The aims of this study were to translate and culturally adapt the UK English Audit of Diabetes-Dependent Quality of Life version 19 (ADDQOL-19) into Bulgarian and explore the psychometric properties of the ADDQoL-19 BUL. The formalized linguistic procedure was used to develop the Bulgarian version of the ADDQoL-19 BUL. The ADDQoL was assessed for the following: internal consistency (Cronbach's alpha); test-retest reliability (intraclass correlation coefficient (ICC)); factor structure and known-groups validity (insulin requiring vs. non-insulin requiring, with vs. without diabetes-related complications, overweight/obese vs. not overweight/obese). A total of 423 adults with type 2 diabetes mellitus (T2DM) participated in the study. The mean age was 59.92 years (standard deviation (SD) 11.60, range 28-88 years), and 52.6% were male. Internal consistency (a = 0.922) and the 3-week test-retest stability (intraclass correlation = 0.99) were high. Confirmatory factor analysis indicated that the one-factor structure of the ADDQoL-19 fits moderately (x 2 = 230.63, df = 136, p < 0.001, SRMR (Standardized Root Mean Square Residual) of 0.05, RMSEA (Root Mean Square Error of Approximation) of 0.06, CFI (Comparative Fit Index) of 0.95). Standardized coefficients showed that all domains loaded 0.4, except for one item. The total score was negatively associated with HbA 1 c (r = ¡0.10; p < 0.05), indicating that lower scores were related to poorer glycaemic control. In conclusion, the Bulgarian version of the ADDQoL-19 has good psychometric properties and provides clinicians and researchers with a useful tool for comprehensive assessment of the quality of life in adults with diabetes mellitus.
2014
The aim of the study was to develop a Polish version of the Diabetes Quality of Life Brief Clinical Inventory (DQL-BCI) and to perform validating evaluation of selected psychometric aspects. Material and methods: The translation process was performed in accordance with generally accepted international principles of translation and cultural adaptation of measurement tools. Two hundred and seventy-four subjects with type 2 diabetes completed the Polish version of DQL-BCI, the generic EQ-5D questionnaire and the diabetes-specific DSC-R. The examination provides information about the reliability (internal consistency, test-retest) and the construct validity of the studied tool (the relationship between the DQL-BCI score and EQ-5D and DSC-R scales, as well as selected clinical patient characteristics). Results: Cronbach's α (internal consistency) for the translated version of DQL-BCI was 0.76. Test-retest Pearson correlation coefficient was 0.96. Spearman's coefficient correlation between DQL-BCI score and EQ-5D index and EQ-VAS were 0.6 (p = 0.0000001) and 0.61 (p = 0.0000001) respectively. The correlation between scores of the examined tool and DSC-R total score was-0.6 (p = 0.0000001). Quality of life was lower among patients with microvascular as well as macrovascular complications and with occurring hypoglycemic episodes. Conclusions: The result of this study is the Polish scale used to test the quality of life of patients with diabetes, which includes the range of problems faced by patients while maintaining a patient-friendly form. High reliability of the scale and good construct validity qualify the Polish version of DQL-BCI as a reliable tool in both research and individual diagnostics.
Diabetes Research and Clinical Practice, 2001
The aim of the study was to analyse psychometric properties of the WHOQOL-100, a multidimensionally conceptualised, generic, 100-item quality of life (QoL) instrument in a pilot sample of 63 type 2 diabetic patients (age 60.4 (10.1) years), 55% women, disease duration 10.2 (6.2) years, education 10 (5.2) years, 78% married. While covering the subjective perception and evaluation of the overall QoL and general health, as well as four broad domains (physical health, psychological state, social relationships and environment), the instrument may be useful in integrating the individual perception of the QoL. The properties tested referred to reliability, validity in discriminating patients with different disease characteristics, and responsiveness to change. Methods: Reliability was determined by Cronbach's alpha coefficients of internal consistency. Discriminant validity was determined by comparing the groups of patients with poor and satisfactory glycaemic control, the first group being switched to insulin therapy (intervention group) and the second (comparison group) remaining on oral therapy (35 and 28 patients respectively). Responsiveness to change was determined by comparing the two groups after a 2-month follow-up period. Results: The obtained alpha coefficients were 0.95 for the physical domain, 0.89 for the psychological domain, 0.76 for the social relationships domain, and 0.92 for the domain referring to environment. The interventional and comparison groups rated their QoL differently, primarily in the physical and psychological domains (PB 0.01; P B 0.05). After a 2-month follow-up period, the intervention group was improved in some QoL determinants (psychological domain), while no differences were found in the control group. Conclusion: Relying on the data obtained from the groups of diabetic patients in Croatia, the WHOQOL-100 can be considered as acceptably reliable and valid instrument for the QoL assessment in this particular population of health care users.
Value in health regional issues, 2013
This article reports a study to measure diabetes-dependent quality of life (QOL) in older Slovenian patients with diabetes mellitus type 2 (DMT2). Methods: A cross-sectional study of older (age ≥ 65 years) patients with DMT2 at outpatient diabetic centers was conducted in all regions in Slovenia. The Audit of Diabetes-Dependent Quality of Life questionnaire was carried out between January and May 2012. Statistical analysis was performed by using IBM SPSS Statistics software, version 18.0. Results: After exclusion of noneligible respondents, a total of 285 respondents were included in the analysis, which represented a 57% response rate. Lower QOL was significantly connected to a heart attack episode (odds ratio 2.42; 95% confidence interval 1.06-5.20) and to the perception of not having diabetes under control (odds ratio 0.36; 95% confidence interval 0.18-0.69). Eleven (3.9%) patients reported no impact of DMT2 on their QOL at all, while in the remaining respondents, particular reference was put to the effects on freedom to eat, dependency on others, and family life. There was no significant difference between the older people living in urban and rural areas. Conclusions: The findings of the present study highlight the impact of DMT2 on QOL. DMT2 imposes a personal burden on individuals. Information on the QOL of older patients with diabetes is important to Slovenian policymakers and family physicians to identify and implement appropriate interventions for achieving better management of diabetes and ultimately improving the QOL of patients with diabetes.
Health, 2014
Purpose: This study reports the reliability and validity analyses of the Audit on diabetes-dependent quality of life (ADDQoL) and EQ-5D in elderly Slovenian diabetic patients. Methods: A crosssectional study of elderly (age ≥ 65 years) non-insulin dependent diabetes mellitus type 2 (DMT2) patients was carried out. The ADDQoL and EQ-5D surveys were conducted between January and May, 2012. Statistical analysis was performed using IBM SPSS Statistics software, version 20.0. Results: After exclusion of non-eligible respondents, the final sample for the analysis was 261 cases (51% male), resulting in 52.2%of response rate. The mean age of the patients was 70.3 years (SD ± 4.1). The Cronbach's alpha was 0.93 for ADDQoL and 0.73 for EQ-5D.There was no improvement in the alpha value if any item was deleted in all instruments. Missing value items ranged from 0.8% to 1.5% for EQ-5D, and from 0.8% to 59.1% (working life) in ADDQoL. Spearman's correlation between the EQ-5D VAS score and ADDQoL weighted overall score resulted in weak correlations coefficient (r = 0.294; p < 0.001). Conclusions: The ADDQoL proved reliable and valid for assessing Health Related Quality of Life (HRQoL) among elderly Slovenian DMT2 patients. EQ-5D seemed to be too generic to describe limitations of DMT2 patients in detail. Using disease specific QoL instruments to learn about patient limitations was recommended. Comparison of ADDQoL results between various studies provided significant differences in the impact of diabetes.
Health and Quality of Life Outcomes, 2022
Background: This study aimed to undertake linguistic validation and assess the psychometric properties of the Persian version of the Audit of Diabetes-Dependent Quality of Life (IR-ADDQoL) questionnaire in Iranian patients with type 1 and type 2 diabetes. Methods: The gold-standard linguistic-validation procedure required by the developer of the ADDQoL (see https:// www. healt hpsyc holog yrese arch. com) including cross-cultural adaptation was followed. Validity and reliability of the Persian ADDQoL were then evaluated in a cross-sectional study of a sample of 153 patients with diabetes. Exploratory and confirmatory factor analyses were applied to assess structural validity. Internal consistency reliability was assessed. Results: Both forced one-factor and unforced four-factor solutions were extracted from the exploratory factor analysis that jointly accounted for 48% and 66.53% of the variance observed, respectively. Confirmatory factor analysis indicated an acceptable model fit for the Persian ADDQoL. Cronbach's alpha showed excellent internal consistency for the questionnaire (alpha = 0.931 for the single scale). Conclusion: The Persian ADDQoL (IR-ADDQoL) showed adequate structural validity and excellent internal consistency. Therefore, it could be efficiently used to evaluate the impact of diabetes on quality of life in outcome studies and research settings in Iran.
journal biology of exercise
Indroduction: Diabetes has a deleterious effect on patients' clinical, social, and economic status as well as their quality of life (Qol). Aim: the purpose of the present study was to investigate the psychometric properties of the Diabetes Quality of life Brief Clinical Inventory (DQl-Brief Clinical Inventory) in a greek diabetic population Material & Methods: the DQl-BCI and the sF-36 questionnaire were filled in by 150 type 2 diabetic patients. Construct and concurrent validity, along with test-retest and internal reliability were examined. results: after principal component analysis of the DQl-BCI, three factors emerged: treatment satisfaction, psychosocial influence and somatic impact. Intraclass correlation and pearson r correlation indicated high repeatability. Cronbach's a coefficient
Pharmacy practice, 2006
This paper describes the processes involved to ensure a diabetes-specific quality of life questionnaire [the "Audit of Diabetes Dependent Quality of Life" (ADDQoL)] retained the psychometric properties following cross-cultural adaptation from English to Portuguese. One hundred patients were recruited through community pharmacies located in Lisbon through a cross-sectional study design. Patients were asked to respond to the questionnaire on one occasion in time. Data were subjected to factor analysis, and internal consistency and discriminatory power analyses were undertaken. In the Portuguese sample, 17 items loaded into one factor, with factor loadings above 0.43. The item "worries about the future" loaded weekly into this factor but if removed its internal consistency estimate increased very slightly (Cronbach's alpha=0.89 to 0.90). A greater negative impact of diabetes on 16 of the 18 quality of life domains was detected for insulin-treated patients, toget...
Quality of Life Research, 2007
Objective The aim of this study was to test the validity and reliability of the Turkish version of the diabetes quality of life (DQOL) questionnaire for use with patients with diabetes. Methods Turkish version of the generic quality of life (QoL) scale 15D and DQOL, socio-demographics and clinical parameter characteristics were administered to 150 patients with type 2 diabetes. Study participants were randomly sampled from the Endocrinology and Diabetes Outpatient Department of Dr. Lutfi Kirdar Kartal Education and Research Hospital in Istanbul, Turkey. Results The Cronbach alpha coefficient of the overall DQOL scale was 0.89; the Cronbach alpha coefficient ranged from 0.80 to 0.94 for subscales. Distress, discomfort and its symptoms, depression, mobility, usual activities, and vitality on the 15 D scale had statistically significant correlations with social/vocational worry and diabetes-related worry on the DQOL scale indicating good convergent validity. Factor analysis identified four subscales: satisfaction'', impact'', ''diabetesrelated worry'', and ''social/vocational worry''. Conclusion Statistical analyses showed that the Turkish version of the DQOL is a valid and reliable instrument to measure disease related QoL in patients with diabetes. It is a simple and quick screening tool with about 15 ± 5.8 min administration time for measuring QoL in this population. Keywords Diabetes Á Quality of life Á Diabetes quality of life Á Validation Abbreviations DQOL Diabetes quality of life QoL Quality of life HRQoL Health related quality of life DCCT Diabetes control and complications trial IGT
Development and psychometric evaluation of a diabetes-specific quality-of-life (D-QOL) scale
Diabetes Research and Clinical Practice, 2012
Aims: The aims of this study were to develop a diabetes-specific quality-of-life (D-QOL) scale and to determine its psychometric properties. Methods: An initial pool of items was generated based on a conceptual construct and attributes of health-related quality of life. The items were reviewed by experts, and a pilot test was conducted. A content-validated preliminary D-QOL scale was verified for use with psychometric tests on 402 patients who were recruited from 3 hospitals in Korea. The data were analyzed using exploratory and confirmatory factor analyses, Cronbach's alpha, generalizability coefficients, ANOVA, and Pearson's correlations. Results: From exploratory analyses, a total of sixteen items clustered four factors were extracted. The four-factor structure was supported by confirmatory factor analysis. Concurrent validity was established with the 36-item Short-Form Health Survey. As hypothesized, the D-QOL scores were worse in severely or moderately depressed patients than in those who were either less depressed or not depressed, implying satisfactory known-groups validity. The reliability of the D-QOL scale was supported by Cronbach's alpha and generalizability coefficients. Conclusions: The D-QOL scale is a simple and brief scale, the use of which is feasible in practice. It demonstrated excellent psychometric properties, and so may also be used in clinical research.