The primary aim of the LIFE study is to compare low-income African American diabetes patients in a lifestyle intervention group with those in a standard of care control group on change in glycemic control at 12-months. We hypothesize that, on average, participants in the intervention group will achieve greater glycemic control at 12-months relative to their baseline A1c, than those in the control group.
This project is a randomized controlled trial to test an innovative lifestyle intervention to achieve sustained improvements in glycemic control among low-income African American diabetes patients. The LIFE (Lifestyle Improvement through Food and Exercise) program is a diabetes self-management program focused on diet and exercise, informed by anthropological research on models of food and health among low-income African-Americans. Pilot work demonstrated that the LIFE Program is effective in improving glycemic control among low-income African Americans at 6-months. The main goal of the current study is to determine whether the LIFE Program can achieve sustained improvements in glycemic control for 12 months. The trial will randomize low-income African American adults with diabetes to a control group, which receives standard diabetes education, or an intervention group, which receives the LIFE Program (28 group meetings with peer support telephone calls) followed by a 6-month maintenance phase (quarterly group sessions with monthly peer support phone calls). The primary aim of the proposed research is to compare low-income African American diabetes patients receiving the LIFE Program with those in a standard of care control group on change in glycemic control at 12 months. Our primary hypothesis is that patients in the intervention group will achieve a change in A1c from baseline that is less than patients in the control group. Secondary aims are to compare low-income African American diabetes patients receiving the LIFE Program with those in a standard of care control group on (a) change in glycemic control at 18 months; (b) change in physical activity and total energy intake at 12 months; (c) change in physical activity and total energy intake at 18 months; and (d) to obtain estimates needed for a subsequent trial, including weight, blood pressure, and diabetes-related hospitalizations. For secondary aims we hypothesize that a) the intervention group will achieve a mean 18-month change in A1C that is less than the change in the control group; b) at 12 months, a greater proportion of intervention patients will have achieved the activity goal of 150 minutes of moderate activity per week, and the intervention group will achieve a greater reduction from baseline in mean total energy intake than the control group; and c) at 18 months, a greater proportion of intervention patients will have achieved the activity goal of 150 minutes of moderate activity per week, and the intervention group will achieve a greater reduction from baseline in mean total energy intake than the control group.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
211
Group classes for 12 months (weekly for 4 months, biweekly for 4 months, monthly for 4 months), weekly peer supporter telephone calls, and diabetes education newsletters every 2 months.
Participants receive 2 diabetes education classes taught by a Certified Diabetes Educator. They also receive diabetes education newsletters every 2 months.
Cook County Health Clinics
Chicago, Illinois, United States
Hemoglobin A1c
Finger prick on Afinion machine
Time frame: change from baseline to 12 months
Physical Activity
An accelerometer is worn by participants for seven days. International-Physical Activity Questionnaire is administered at baseline, 6 months, 1 year, and 18 months.
Time frame: change from baseline to 12 months
Total Energy Intake
24-hour dietary food recalls
Time frame: change from baseline to 12 months
Physical Measures
Measurements of weight, waist circumference, and blood pressure.
Time frame: change from baseline to 12 months
Medications
Participants bring all medications to the clinic visit and medication and dosage is recorded.
Time frame: change from baseline to 12 months
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