Psychometric properties of the Diabetes Self-Management Questionnaire (DSMQ) in Urdu

被引:31
作者
Bukhsh, Allah [1 ,2 ]
Lee, Shaun Wen Huey [1 ,3 ]
Pusparajah, Priyia [4 ]
Schmitt, Andreas [5 ]
Khan, Tahir Mehmood [1 ,3 ]
机构
[1] Monash Univ, Sch Pharm, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor, Malaysia
[2] Univ Vet & Anim Sci, Inst Pharmaceut Sci, Lahore 54000, Pakistan
[3] Monash Univ Malaysia, Asian Ctr Evidence Synth Populat Implementat & Cl, Hlth & Well Being Cluster, Global Asia 21 Century Platform GA21 Platform, Bandar Sunway, Selangor, Malaysia
[4] Monash Univ, Jeffrey Cheah Sch Med & Hlth Sci, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor, Malaysia
[5] German Diabet Ctr Mergentheim, Res Inst Diabet Acad Mergentheim FIDAM, Theodor Klotzbucher Str 12, D-97980 Bad Mergentheim, Germany
关键词
Self-care; Type; 2; diabetes; Validation; HbA1c; Psychometric analysis; GLYCEMIC CONTROL; CARE ACTIVITIES; VALIDATION; INSTRUMENT; ADHERENCE; MELLITUS;
D O I
10.1186/s12955-017-0776-8
中图分类号
R19 [保健组织与事业(卫生事业管理)];
学科分类号
摘要
Background: Numerous study tools on diabetes self-care have been introduced; however, most existing tools do not show expectable and meaningful correlations with patients' glycaemic control. The Diabetes Self-Management Questionnaire (DSMQ) was designed to appraise self-care activities which can predict glycaemic control outcomes. However, this tool has not been validated in Pakistan. Therefore, the aim of this study was to translate and examine the psychometric properties of the Urdu version of DSMQ among type 2 diabetes patients. Method: Standard forward-backward translation was used to translate the DSMQ into Urdu language. A convenience sample of 130 patients with type 2 diabetes was collected to assess the Urdu version's psychometric properties. Reliability was assessed by Cronbach's coefficient a and validity was assessed using confirmatory factor analysis and criterion-related correlations. Results: High internal consistency was found for all DSMQ scales (Sum scale: a = 0.96, Glucose Management: 0.91; Dietary Control: 0.88; Physical Activity: 0.89; Health-Care Use: 0.73). The DSMQ subscales showed significant correlations with HbA1c (Glucose Management: -0.75; Dietary Control: -0.76; Physical Activity: -0.71; Health-Care Use: -0.64; Sum Scale: -0.78; all p < 0.001). However, when associations with HbA1c were assessed in one multiple linear regression model, only Glucose Management and Dietary Control were significantly associated with lower HbA1c values (Beta = -0.42, p = 0.004 and Beta = -0.30, p = 0.028, respectively), while Physical Activity and Health-Care Use were not (p > 0.05). Adequate fit to the data was achieved for single factor model after successively modelling all significant correlations between the items' error terms, with Chi(2) = 106.6, df = 84, p = 0.049; TLI = 0.98, CFI = 0.99 and RMSEA = 0.05 (90% CI 0.01-0.07). Whereas a comparatively lower fit indices to data were observed in case of four factor model. Conclusion: The findings support the Urdu version of the DSMQ as a reliable and valid instrument for assessing self-care activities associated with glycaemic control in type 2 diabetes patients.
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页数:9
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