Validation of the Polish version of Diabetes Quality of Life - Brief Clinical Inventory (DQL-BCI) among patients with type 2 diabetes (original) (raw)
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Health and Quality of Life Outcomes, 2018
Background: Currently there is no diabetes-specific quality of life (QOL) instrument available in Lithuanian language. We aimed to develop a Lithuanian version of a widely-used individualised instrument-the Audit of Diabetes Dependent Quality of Life questionnaire (ADDQOL-19) and assess the validity and reliability in patients with type 1 and type 2 diabetes mellitus (DM). Methods: This study was conducted at the Primary Care and Endocrinology Outpatient Clinics in Vilnius. The ADDQOL was translated from the original English (UK) into Lithuanian using a standardized methodology of forward and back translation. After cognitive "debriefing" the validity and reliability of LT-ADDQOL questionnaire were assessed in a sample of 138 diabetes patients. Cronbach's alpha coefficient, factor analysis, independent t tests and ANOVA were used. Results: There were 106 participants with type 2 and 32 with type 1 DM included in the study with a mean age of 55.5 years (± 14.5) and 56.2% women. The Cronbach's alpha coefficient was 0.908 and most of items loading values onto one single factor were larger than 0.40 (varied from 0.41 to 0.77), indicating good internal consistency and reliability of instrument. Conclusions: We developed the Lithuanian version of ADDQOL-19 which is a valid and reliable instrument to measure impact of diabetes on QOL. It could be further used by clinicians and researchers for comprehensive assessment of QOL in adults with diabetes.
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
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.
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.
Research in Social and Administrative Pharmacy, 2016
Background: Quality of life (QoL) assessment provides valuable outcome to support clinical decision-making, particularly for patients with chronic diseases that are incurable. A brief, 15item diabetes-specific tool [i.e. Diabetes Quality of Life Brief Clinical Inventory (DQoL-BCI)] is known to be developed in English and validated for use in clinical practice. This simplified tool, however, is not readily available for use in the Malaysian setting. Objective: To translate the DQoL-BCI into a Malaysian version and to assess its construct validity (factorial validity, convergent validity and discriminant validity), reliability (internal consistency) and floor and ceiling effects among the Malaysian diabetic population. Material and methods: A forward-backward translation, involving professional translators and experts with vast experience in translation of patient reported outcome measures, was conducted. A total of 202 patients with Type 2 diabetes mellitus (T2DM) who fulfilled the inclusion criteria were invited to complete the translated DQoL-BCI. Data were analysed using SPSS for exploratory factor analysis (EFA), convergent and discriminant validity, reliability and test-retest, and AMOS software for confirmatory factor analysis (CFA). Results: Findings from EFA indicated that the 4-factor structure of the Malaysian version of DQoL-BCI was optimal and explained 50.9% of the variance; CFA confirmed the 4-factor model fit. There was negative, moderate correlation between the scores of DQoL-BCI (Malaysian version) and EQ-5D-3L utility score (r =-0.329, p = 0.003). Patients with higher glycated haemoglobin levels (p = 0.008), diabetes macrovascular (p = 0.017) and microvascular (p = 0.013) complications reported poorer QoL. Cronbach's alpha coefficient and intraclass
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.
Acta Fisiátrica
Diabetes mellitus (DM) can have a profound impact on the patients’ quality of life and the International Classification on Functioning, Disability and Health (ICF) is a valid tool to verify the influence of the health components on quality of life. Objective: The aim of this study is to present the frequency distribution of the ICF categories of the summarized Core Set for DM with severe involvement in a group of patients whose quality of life was deeply affected by DM. Methods: A total of 38 patients with DM were studied, of whom 76.3 % had DM2 and 23.7% had DM1, using the clinical data, information on the quality of life associated to DM from the AddQoL questionnaire and the disability associated to diabetes: categories of the summarized Core Set of the ICF with severe and complete involvement and categories of which information was insufficient to specify the severity of the involvement. Statistical analysis: The descriptive analysis of the data was performed. Results: The bodily...
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
Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
The aim of this study was to assess the structure and validate the Polish version of the Problem Areas in Diabetes (PAID) scale, as the current translations of the original English version significantly vary in their psychometric properties. Patients and Methods: Two hundred and sixteen consecutive Polish outpatients were invited to participate in this international cross-sectional study on depression in diabetes. The research was based on the demographic and clinical characteristics of the study population, including the level of glycated hemoglobin (HbA 1c) and scores obtained in the Polish versions of the following questionnaires: PAID, World Health Organization-Five Well-Being Index (WHO-5), Patient Health Questionnaire 9 (PHQ-9). The psychiatric diagnosis was conducted with the use of Mini-International Neuropsychiatric Interview (M.I.N.I.). Results: Exploratory factor analyses yielded a 1-factor structure that included all 20 items. The internal consistency of the Polish version of PAID was high (Cronbach α = 0.97). There were significant positive correlation between PAID and PHQ-9 and a negative correlation between PAID and WHO-5. We also observed a negative association between PAID scores and age and a positive correlation between PAID and HbA 1c levels. Patients with depression reported significantly higher PAID scores as compared with those without depressive symptoms. Conclusion: The Polish version of PAID has a one-factor structure and is a reliable, valid outcome measure for Polish outpatients with type 2 diabetes and it may constitute a useful instrument for screening for psychologic issues in diabetic patients during their appointments at the diabetes clinic.