Mobile Health Apps in Hypertensive Management: A Longitudinal Study in Tanzania

Hypertension is a significant public health issue in Tanzania, where effective management strategies are limited by access to healthcare resources and adherence to prescribed medication regimens. A longitudinal study design was employed with a sample size of 300 hypertensive adults recruited from urban and rural areas. Participants were randomized into two groups: one using a mobile health app for hypertension management (Intervention Group) and the other receiving standard care without apps (Control Group). Blood pressure readings were recorded at baseline, 6 months, and 12 months post-intervention. The Intervention Group showed a statistically significant reduction in mean systolic blood pressure from 140 mmHg to 135 mmHg over the 12-month period (p < 0.05), with a confidence interval of -6 to -2 mmHg. Mobile health apps can be effective tools for improving blood pressure control in hypertensive adults, particularly those living in resource-limited settings such as Tanzania. Further research should explore the long-term sustainability and scalability of mobile health app interventions in diverse populations across different geographical regions. Treatment effect was estimated with logit(pᵢ)=β₀+β^ Xᵢ, and uncertainty reported using confidence-interval based inference.