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Diabetes Care. 2009 Dec;32(12):2149-55. doi: 10.2337/dc09-0563. Epub 2009 Sep 9.

Addressing literacy and numeracy to improve diabetes care: two randomized controlled trials.

Author information

  • 1Division of Nephrology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.

Abstract

OBJECTIVE:

Diabetic patients with lower literacy or numeracy skills are at greater risk for poor diabetes outcomes. This study evaluated the impact of providing literacy- and numeracy-sensitive diabetes care within an enhanced diabetes care program on A1C and other diabetes outcomes.

RESEARCH DESIGN AND METHODS:

In two randomized controlled trials, we enrolled 198 adult diabetic patients with most recent A1C >or=7.0%, referred for participation in an enhanced diabetes care program. For 3 months, control patients received care from existing enhanced diabetes care programs, whereas intervention patients received enhanced programs that also addressed literacy and numeracy at each institution. Intervention providers received health communication training and used the interactive Diabetes Literacy and Numeracy Education Toolkit with patients. A1C was measured at 3 and 6 months follow-up. Secondary outcomes included self-efficacy, self-management behaviors, and treatment satisfaction.

RESULTS:

At 3 months, both intervention and control patients had significant improvements in A1C from baseline (intervention -1.50 [95% CI -1.80 to -1.02]; control -0.80 [-1.10 to -0.30]). In adjusted analysis, there was greater improvement in A1C in the intervention group than in the control group (P = 0.03). At 6 months, there were no differences in A1C between intervention and control groups. Self-efficacy improved from baseline for both groups. No significant differences were found for self-management behaviors or satisfaction.

CONCLUSIONS:

A literacy- and numeracy-focused diabetes care program modestly improved self-efficacy and glycemic control compared with standard enhanced diabetes care, but the difference attenuated after conclusion of the intervention.

PMID:
19741187
[PubMed - indexed for MEDLINE]
PMCID:
PMC2782967
Free PMC Article

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