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Effectiveness of User- and Expert-Driven Web-based Hypertension Programs: an RCT.
Sam Liu1, Dina Brooks2, Scott G Thomas3
1School of Exercise Science, Physical and Health Education, Faculty of Education, University of Victoria, Victoria, British Columbia, Canada.
American Journal of Preventive Medicine
|February 20, 2018
Summary
Expert-driven internet lifestyle counseling significantly reduced systolic blood pressure in hypertension patients compared to controls. This approach also improved cholesterol and daily steps, suggesting its value for lifestyle change.
Area of Science:
- Cardiovascular Health
- Digital Health Interventions
- Behavioral Medicine
Background:
- Internet-based lifestyle counseling (e-counseling) effectiveness varies by protocol.
- Expert-driven and user-driven e-counseling are dominant but their impact on hypertension is unclear.
Purpose of the Study:
- To assess if expert-driven or user-driven e-counseling improves blood pressure in hypertensive patients over 4 months compared to a control group.
Main Methods:
- A 4-month, three-parallel group, double-blind randomized controlled trial.
- 128 hypertensive participants in Toronto received either expert-driven, user-driven, or control e-counseling.
- Interventions involved tailored weekly plans or participant-chosen goals; controls received newsletters.
Main Results:
- Expert-driven e-counseling significantly decreased systolic blood pressure (-7.5 mmHg) versus controls (p=0.01).
- No significant difference in blood pressure reduction between user-driven and expert-driven groups.
- Expert-driven intervention improved cholesterol, Framingham risk score, daily steps, and fruit intake more than other groups.
Conclusions:
- Expert-driven e-counseling shows promise for hypertension management, particularly for motivated individuals.
- Incorporating expert-driven protocols may enhance lifestyle behavior change in digital health interventions.
- Further research is needed to fully understand the long-term impact and optimal implementation.
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