Development and psychometric properties of a new social support scale for self-care in middle-aged patients with type II diabetes (S4-MAD)

BMC Public Health

Research Article

Ebrahim Hajizadeh¹  Shohreh Naderimagham²  Shamsaddin Niknami²  Farid Abolhassani³  Ali Montazeri⁴ 

[1] Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran;Department of Health Education, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran;Department of Health Management, National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran;Mental Health Research Group, Health Metrics Research Centre, Iranian Institute for Health Sciences Research, Tehran, ACECR, Iran;

关键词: Social Support;    Confirmatory Factor Analysis;    Standardize Root Mean Square Residual;    Social Support Scale;    Content Validity Index;   

DOI  :  10.1186/1471-2458-12-1035

 received in 2012-04-04, accepted in 2012-11-17,  发布年份 2012

来源: Springer

【 摘 要 】

BackgroundSocial support has proved to be one of the most effective factors on the success of diabetic self-care. This study aimed to develop a scale for evaluating social support for self-care in middle-aged patients (30–60 years old) with type II diabetes.MethodsThis was a two-phase qualitative and quantitative study. The study was conducted during 2009 to 2011 in Tehran, Iran. In the qualitative part, a sample of diabetic patients participated in four focus group discussions in order to develop a preliminary item pool. Consequently, content and face validity were performed to provide a pre-final version of the questionnaire. Then, in a quantitative study, reliability (internal consistency and test-retest analysis), validity and factor analysis (both exploratory and confirmatory) were performed to assess psychometric properties of the scale.ResultsA 38-item questionnaire was developed through the qualitative phase. It was reduced to a 33-item after content validity. Exploratory factor analysis loaded a 30-item with a five-factor solution (nutrition, physical activity, self monitoring of blood glucose, foot care and smoking) that jointly accounted for 72.3% of observed variance. The confirmatory factor analysis indicated a good fit to the data. The Cronbach’s alpha coefficient showed excellent internal consistency (alpha=0.94), and test-retest of the scale with 2-weeks intervals indicated an appropriate stability for the scale (ICC=0.87).ConclusionThe findings showed that the designed questionnaire was a valid and reliable instrument for measuring social support for self-care in middle-aged patients with type II diabetes. It is an easy to use questionnaire and contains the most significant diabetes related behaviors that need continuous support for self-care.

【 授权许可】

Unknown   
© Naderimagham et al.; licensee BioMed Central Ltd. 2012. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.