Call-2-Health: Preventing Type II Diabetes

Translating the Diabetes Prevention Project (DPP) in a Health Maintenance Organization (HMO) Setting

It is estimated that 30 million U.S. adults will have type 2 diabetes by 2050. Contributing to this national trend is the obesity epidemic. Three randomized trials have demonstrated that intensive behavioral interventions can prevent or delay the onset of diabetes. The purpose of this pilot study is to inform a future randomized, controlled Phase III trial of a population-based, telephonic, exercise and weight loss intervention to translate the findings of the Diabetes Prevention Program into practice. The telephonic intervention will be compared to usual care (30 participants in each group). The investigators will deliver the intervention in 12 weekly, 20-minute calls, with four subsequent maintenance calls, for a total of 16 calls over 24 weeks. Study outcomes will be measured at baseline and at 12 and 24 weeks.

For this planning grant the investigators do not have an overall hypothesis. The investigators' goal is to develop and test whether it is possible to do exercise and weight loss

Inclusion Criteria:

• Male or female
• Age 40-74
• Receives primary care at Group Health Central, Rainier, or Poulsbo clinics in the greater Seattle area
• Can walk for more than 10 minutes
• Fasting plasma glucose (FPG) 105-125 mg/dl or glycolated hemoglobin (HbA1C) 5.7-6.4
• Body Mass Index (BMI) 25 kg/m2 or greater

Exclusion Criteria:

• Type 1 or 2 diabetes
• FPG > 125 mg/dl or < 105mg/dl at screening blood draw
• HbA1C > 6.4 or < 5.7 at screening blood draw
• Systolic blood pressure > 210 mmHg at the baseline clinic visit
• Exercise ≥ 30 minutes/day, at least five days a week
• Current participation in another structured weight loss treatment program or another intervention study
• Severe concurrent disease
• Unavailable for the 24-week study period
• Unable to read or speak English
• Pregnant or planning to become pregnant.
• Mentally or legally incapacitated such that informed consent cannot be obtained.