Speaker
Sarah L. Cutrona, MD, MPH
Acting Director, Center for Health Optimization and Implementation Research (CHOIR)
VA Bedford Healthcare System
Professor, Division of Health Informatics and Implementation Science
Department of Population and Quantitative Health Sciences
UMass Chan Medical School
Keywords
Blood Pressure; Hypertension; Self-Management; Video; Texting; Black Americans; Veterans
Key Points
- Black Americans experience disproportionate morbidity and mortality due to hypertension (HTN). Simultaneously, self-management is made more difficult by differential rates of diagnosis and treatment titration; decreased access to, trust in, and engagement with the healthcare system; and cost, access, and environmental barriers. This study sought to improve HTN control and self-management among about 600 Black Veterans by supplementing a preexisting video story intervention with longitudinal texting support.
- Those in the intervention arm watched 5 video stories featuring other Black Veterans, chose their preferred storyteller, and received educational and interactive messages aligned with that storyteller. Those in the control arm received only interactive messages. The researchers hypothesized that peer stories would promote participants’ emotional engagement with the messages via a parasocial relationship with the storyteller, enhancing self-efficacy, influencing health behaviors and ultimately improving HTN control.
- While participants in both arms saw marginal improvements in systolic and diastolic blood pressure (BP), there was no significant difference in the BP change between the arms. The intervention saw high treatment fidelity (92%) and sustained engagement, with over 55% of participants responding to texts through the end of the 6-month period. The researchers concluded that the interactive text messages, which were present in both arms, were an effective way to maintain engagement in a multi-month study and may serve as a useful strategy for future longitudinal interventions supporting Black Veterans.
Discussion Themes
The control group was intentionally kept active – i.e., received educational texts – to isolate the specific impact of storytelling rather than just the impact of receiving text messages.
The intervention was shaped by direct feedback from veteran consultants, who provided guidance on tone, word choice, and structure to ensure the messages felt authentic.
Attendees noted that negative studies are vital for informing future research and that the intervention provided valuable moments of outreach to a population facing socioeconomic vulnerabilities and isolation.