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.

Objective: We aimed to validate the Malay version of Diabetes Quality of Life (DQOL) questionnaire for Malaysian adult population with type 2 diabetes mellitus (DM).Methods: This is a cross-sectional study to validate Malay version of DQOL among the adult diabetic patients. DQOL questionnaire has 46 items consist of three domains, namely Satisfaction Domain, Impact Domain and Worry Domain. Both forward and backward translations from the English version of DQOL into Malay version were performed. After the face validity of the Malay version was established, it was then pilot-tested. Finally, the validity and reliability of the final Malay version of DQOL questionnaire were evaluated.Results: There were 290 patients participated in this study with a mean (SD) age of 53.1 (10.0) years. The Cronbach's alpha coefficients of the overall items and the main domains were between 0.846 and 0.941. The Pearson's correlation coefficients for the three domains were between 0.228 and 0.451. HbA1C was found to be positively correlated with Impact Domain (P = 0.006). The Worry Domain was associated with diabetic retinopathy (P = 0.014) and nephropathy (P = 0.033).Conclusion: The Malay version of diabetes quality of life (DQOL) questionnaire was found to be a valid and reliable survey instrument to be used for Malaysian adult patients with diabetes mellitus.

AIM: The objective of this study was to evaluate the effectiveness of the EMPOWER- participatory action research (PAR) intervention, a multifaceted strategy based on the chronic care model (CCM) on primary care providers (PCP)’ adherence to type 2 diabetes mellitus (T2DM) clinical practice guideline (CPG) in the Malaysian primary care setting. METHODS: This was a pragmatic cluster randomized controlled trial –PAR conducted in ten public primary care clinics in Malaysia. Five clinics were randomly selected to provide the EMPOWER-PAR intervention for 1 year and another five clinics continued with usual care. The outcome measure was the absolute change in the proportion of PCP’s adherence to T2DM CPG captured using the “Indicators of Care Pro forma,” based on the recommendation by the Malaysian CPG on the Management of T2DM. Data were collected from the patients’ medical records, at baseline and at 1-year follow-up; and were analyzed using mixed method model. RESULTS: A total of 888 patients were recruited at baseline; 471 were in the intervention and 417 were in the control group. There was no significant demographic difference between the two groups at baseline except for ethnicity. At 1-year, 455 (96.6%) and 406 (97.3%) patients in the intervention and control groups completed the study, respectively. There were significant improvements in the absolute change in the proportion of PCPs’ adherence to T2DM CPG in the intervention group compared to the control group at 1-year follow-up in several indicators of care. These included the recording of BMI (0.6% vs. −1.8%, p<0.001); performing foot examination (2.4% vs. 0.6%, p<0.001); performing funduscopy/fundus photography (1.5% vs. 0.3%, p<0.001); monitoring renal profile (0.9% vs. −0.6%, p=0.001); measuring urine protein (1.2% vs. 0.6%, p<0.001), and giving lifestyle modification and self-management advice (1.2% vs. −0.3%, p<0.001) in the intervention versus control groups, respectively. CONCLUSION: The EMPOWER-PAR intervention has been proven to be effective in improving the PCPs’ adherence to T2DM CPG in several indicators of care. Findings from this study provided objective evidence of the effectiveness of multifaceted intervention based on the CCM in the Malaysian public primary care setting. TRIAL REGISTRATION: Registered with: ClinicalTrials.gov: NCT01545401. Date of registration: 1st March 2012.