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Lay advisor interventions for hypertension outcomes: A Systematic Review, Meta-analysis and a RE-AIM evaluation
Sonal J Patil1, Vishwa Bhayani2, Yilin Yoshida3
1Center for Health Equity, Engagement, Education, and Research (CHEEER), Department of Family Medicine, The MetroHealth Campus of Case Western Reserve University, Cleveland, OH, United States.
Lay advisor interventions effectively lower blood pressure (BP) in adults with hypertension, especially high-intensity programs. However, factors for successful, sustained implementation in health systems require further investigation.
Area of Science:
- Public Health
- Cardiovascular Health
- Health Services Research
Background:
- Hypertension management remains a global health challenge, necessitating innovative and accessible interventions.
- Lay advisor interventions show promise, but their effectiveness and implementation factors within healthcare systems need clarification.
Approach:
- A systematic review and meta-analysis of studies on lay advisor interventions for hypertension was conducted.
- Searched multiple databases (Ovid MEDLINE, CINAHL, PsycINFO) from 1981-2023, including 41 articles (22 RCTs).
- Analyzed intervention benefits and implementation factors using the RE-AIM framework.
Key Points:
- Lay advisor interventions significantly reduced systolic BP (-3.72 mm Hg) and diastolic BP (-1.7 mm Hg) compared to controls.
- High-intensity lay advisor interventions yielded greater BP reductions than low-intensity ones.
- External validity indicators (adoption, implementation, maintenance) were rarely reported.
Conclusions:
- Lay advisor interventions are beneficial for hypertension management, with higher intensity correlating with improved outcomes.
- Further research is crucial to identify key factors for successful, scalable, and sustainable implementation of these interventions in diverse healthcare settings.
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