Therapeutic benefit of preventive telehealth counseling in the Community Outreach Heart Health and Risk Reduction Trial

Abstract

We evaluated whether telehealth counseling augments lifestyle change and risk factor decrease in subjects at high risk for primary or secondary cardiovascular events compared to a recommended guideline for brief preventive counseling. Subjects at high risk or with coronary heart disease (35 to 74 years of age, n = 680) were randomized to active control (risk factor feedback, brief advice, handouts) or telehealth lifestyle counseling (active control plus 6 weekly 1-hour teleconferenced sessions to groups of 4 to 8 subjects). Primary outcome was questionnaire assessment of adherence to daily exercise/physical activity and diet (daily vegetable and fruit intake and restriction of fat and salt) after treatment and at 6-month follow-up. Secondary outcomes were systolic and diastolic blood pressures, ratio of total to high-density lipoprotein cholesterol, and 10-year absolute risk for coronary disease. After treatment and at 6-month follow-up, adherence increased for telehealth versus control in exercise (29.3% and 18.4% vs 2.5% and 9.3%, respectively, odds ratio 1.60, 95% confidence interval 1.2 to 2.1) and diet (37.1% and 38.1% vs 16.7% and 33.3%, respectively, odds ratio 1.41, 95% confidence interval 1.1 to 1.9). Telehealth versus control had greater 6-month decreases in blood pressure (mean ± SE, systolic -4.8 ± 0.8 vs -2.8 ± 0.9 mm Hg, p = 0.04; diastolic -2.7 ± 0.5 vs -1.5 ± 0.6 mm Hg, p = 0.04). Decreases in cholesterol ratio and 10-year absolute risk were significant for the 2 groups. In conclusion, telehealth counseling augments therapeutic lifestyle change in subjects at high risk for cardiovascular events compared to a recommended guideline for brief preventive counseling.