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Improving Care for Patients With Diabetes and Poor Numeracy Skills

Improving Care for Patients With Diabetes and Poor Numeracy Skills

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00311922
Enrollment
106
Registered
2006-04-06
Start date
2006-03-31
Completion date
2007-12-31
Last updated
2008-02-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes

Keywords

Diabetes, Education, Health Literacy

Brief summary

The aim of this research will be to perform a randomized controlled trial (RCT) of a new diabetes educational intervention that teaches self-management skills that compensate for poor numeracy skills among a sample of patients with diabetes and low numeracy.

Detailed description

Results of the National Adult Literacy Survey (NALS) suggest that over 90 million adult Americans have poor quantitative skills. Numeracy, the ability to understand and use numbers and math skills in daily life, may be particularly important to patients with diabetes because caring for diabetes often requires self-management skills that rely on the daily application of math skills, such as counting carbohydrates, interpreting blood glucose monitoring, applying sliding scale insulin regimens, and calculating insulin to carbohydrate ratios. Presumably diabetes patients with poor numeracy have more difficulty with self-management and are at risk for poorer clinical outcomes, but to date, there are no published studies that rigorously examine the role of numeracy in diabetes. We have recently completed the initial development of a new scale to measure numeracy in patients with diabetes: the Diabetes Numeracy Test (DNT). The aim of this research will be to perform a randomized controlled trial (RCT) of a new diabetes educational intervention that teaches self-management skills that compensate for poor numeracy skills among a sample of patients with diabetes and low numeracy. We hypothesize that a group of patients with poor numeracy who are taught self-management skills that accommodate their poor numeracy will have: (1) improved treatment satisfaction and perceived self-efficacy, (2) improved performance in self-management tasks, and (3) improved glycemic control compared to a control group that receives usual education.

Interventions

Comprehensive educational Intervention

BEHAVIORALControl Group

Receives comprehensive education that is not literacy/numeracy sensitive

Sponsors

Pfizer
CollaboratorINDUSTRY
Vanderbilt DRTC P&F Grant (DK20593)
CollaboratorUNKNOWN
American Diabetes Association
CollaboratorOTHER
Vanderbilt University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Clinical diagnosis of Type 1 or 2 Diabetes; 2. most recent A1C greater than or equal to 7.0%; 3. Referred to the Diabetes Improvement Program for diabetes care; 4. Age 18-80; 5. English Speaking.

Exclusion criteria

1. Patients with corrected visual Acuity \>20/50 using a Rosenbaum Pocket Vision Screener, or 2. Patients with a diagnosis of significant dementia, psychosis, or blindness.

Design outcomes

Primary

MeasureTime frame
A1C3 and 6 months

Secondary

MeasureTime frame
Patient self-management behaviors3 and 6 months
Patient knowledge6 months
Patient satisfaction6 months

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026