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Articles

Perceptions of Provider Communication Among Vulnerable Patients With Diabetes: Influences of Medical Mistrust and Health Literacy

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Abstract

Patient–provider communication is modifiable and is linked to diabetes outcomes. The association of communication quality with medical mistrust is unknown. We examined these factors within the context of a low-literacy/numeracy-focused intervention to improve diabetes care, using baseline data from diverse patients enrolled in a randomized trial of a health communication intervention. Demographics, measures of health communication (Communication Assessment Tool [CAT], Interpersonal Processes of Care survey [IPC-18]), health literacy (Short Test of Functional Health Literacy in Adults), depression, medical mistrust, and glycemic control were ascertained. Adjusted proportional odds models were used to test the association of mistrust with patient-reported communication quality. The interaction effect of health literacy on mistrust and communication quality was also assessed. A total of 410 patients were analyzed. High levels of mistrust were observed. In multivariable modeling, patients with higher mistrust had lower adjusted odds of reporting a higher CAT score (adjusted odds ratio [AOR] = 0.67, 95% confidence interval [CI] [0.52, 0.86], p = .003) and higher scores on the Communication (AOR = 0.69, 95% CI [0.55, 0.88], p = .008), Decided Together (AOR = 0.74, 95% CI [0.59, 0.93], p = .02), and Interpersonal Style (AOR = 0.69, 95% CI [0.53, 0.90], p = .015) subscales of the IPC-18. We observed evidence of an interaction effect of health literacy for the association between mistrust and the Decided Together subscale of the IPC-18 such that patients with higher mistrust and lower literacy perceived worse communication relative to mistrustful patients with higher literacy. In conclusion, medical mistrust was associated with poorer communication with providers in this public health setting. Patients’ health literacy level may vary the effect of mistrust on interactional aspects of communication. Providers should consider the impact of mistrust on communication with vulnerable diabetes populations and focus efforts on mitigating its influence.

Acknowledgments

The Partnership to Improve Diabetes Education (PRIDE) Study Team members (not listed as coauthors) are David G. Schlundt, PhD, Department of Psychology, Vanderbilt University, Nashville, Tennessee; Anne Sizemore, MA, CMI, Institute for Medicine and Public Health, Vanderbilt University, Nashville, Tennessee; and Karen Trochez, AA, BA, Institute for Medicine and Public Health, Vanderbilt University, Nashville, Tennessee. We are thankful for the collaboration of the physicians and staff at the Mid-Cumberland Region Tennessee Department of Health and for each patient who voluntarily gave of their time and energy to make the PRIDE project possible.

Content from this article was presented in oral abstract format at the International Conference for Communication in Healthcare in Montreal, Canada, in October 2013.

Funding

This research study, The Public-Private Partnership Addressing Literacy-Numeracy to Improve Diabetes Care, is funded by Grant No. 5R18 DK083264 from the National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health. Dr. White is additionally funded by Grant No. 5K23 DK092470 from the National Institute of Diabetes and Digestive and Kidney Diseases. Data capture and management was supported by the Vanderbilt University Clinical and Translational Science Award 5UL1TR000445.

Additional information

Funding

This research study, The Public-Private Partnership Addressing Literacy-Numeracy to Improve Diabetes Care, is funded by Grant No. 5R18 DK083264 from the National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health. Dr. White is additionally funded by Grant No. 5K23 DK092470 from the National Institute of Diabetes and Digestive and Kidney Diseases. Data capture and management was supported by the Vanderbilt University Clinical and Translational Science Award 5UL1TR000445.

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