A Community-Based Intervention for Managing Hypertension in Rural South Asia

Area of Science:

• Global Health
• Cardiovascular Health
• Public Health Interventions

Background:

• Hypertension prevalence and control rates are critical global health challenges, particularly in low- and middle-income countries.
• Rural populations in these regions face disproportionately high rates of cardiovascular mortality.
• Effective strategies are needed to manage hypertension in underserved communities.

Purpose of the Study:

• To evaluate the effectiveness of a multicomponent intervention for hypertension management in rural South Asia.
• To assess the impact of community health worker-led home visits on blood pressure reduction.
• To determine the effect of the intervention on blood pressure control and mortality.

Main Methods:

• A cluster-randomized controlled trial was conducted in rural districts of Bangladesh, Pakistan, and Sri Lanka.
• 30 communities were randomized to either a multicomponent intervention or usual care.
• The intervention included home visits by trained community health workers for monitoring and counseling, physician training, and public sector care coordination for 2645 adults with hypertension.

Main Results:

• The intervention group experienced a mean systolic blood pressure reduction of 9.0 mm Hg versus 3.9 mm Hg in the control group, a difference of 5.2 mm Hg.
• Blood pressure control (<140/90 mm Hg) was achieved in 53.2% of the intervention group compared to 43.7% in the control group.
• All-cause mortality was lower in the intervention group (2.9%) than in the control group (4.3%).

Conclusions:

• A multicomponent intervention centered on proactive home visits by community health workers significantly reduced blood pressure in rural adults with hypertension.
• The intervention, integrated with existing public health infrastructure, improved hypertension control.
• This approach offers a scalable model for enhancing cardiovascular health in resource-limited settings.