• Junling Gao, Jingli Wang, Pinpin Zheng, Regine Haardörfer, Michelle C Kegler, Yaocheng Zhu, and Hua Fu.
• School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, PO Box 248 138 Yixueyuan Road, Shanghai 200032, People's Republic of China.
• Bmc Fam Pract. 2013 May 24; 14: 6666.

BackgroundA number of studies have examined the influence of self-efficacy, social support and patient-provider communication (PPC) on self-care and glycemic control. Relatively few studies have tested the pathways through which these constructs operate to improve glycemic control, however. We used structural equation modeling to examine a conceptual model that hypothesizes how self-efficacy, social support and patient-provider communication influence glycemic control through self-care behaviors in Chinese adults with type 2 diabetes.MethodsWe conducted a cross-sectional study of 222 Chinese adults with type 2 diabetes in one primary care center. We collected information on demographics, self-efficacy, social support, patient-provider communication (PPC) and diabetes self-care. Hemoglobin A1c (HbA1c) values were also obtained. Measured variable path analyses were used to determine the predicted pathways linking self-efficacy, social support and PPC to diabetes self-care and glycemic control.ResultsDiabetes self-care had a direct effect on glycemic control (β = -0.21, p = .007), No direct effect was observed for self-efficacy, social support or PPC on glycemic control. There were significant positive direct paths from self-efficacy (β = 0.32, p < .001), social support (β = 0.17, p = .009) and PPC (β = 0.14, p = .029) to diabetes self-care. All of them had an indirect effect on HbA1c (β =-0.06, β =-0.04, β =-0.03 respectively). Additionally, PPC was positively associated with social support (γ = 0.32, p < .001).ConclusionsHaving better provider-patient communication, having social support, and having higher self-efficacy was associated with performing diabetes self-care behaviors; and these behaviors were directly linked to glycemic control. So longitudinal studies are needed to explore the effect of self-efficacy, social support and PPC on changes in diabetes self-care behaviors and glycemic control.

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