Last updated May 16, 2026
Key finding
A culturally tailored storytelling video may modestly improve blood sugar in Hispanic adults with diabetes.
This study tested a 12-minute video featuring four Hispanic people sharing their diabetes management stories. 451 Hispanic adults with poorly controlled type 2 diabetes watched the video or received printed materials. After 3 months, blood sugar dropped slightly more in the video group. The effect was small but noticeable when accounting for starting differences. Nearly all participants felt more motivated and confident about managing their diabetes. The video didn't change other health measures like blood pressure or weight. While motivation increased, this didn't lead to measured behavior changes in the short 3-month period. The video may work best as part of a larger diabetes program.
Quick read
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EvidenceScore™
Moderate
Study type
Randomized Controlled Trials (RCTs)
Follow-up
Short-Term (≤3 mo)
Risk of bias
Some Concerns
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Study focus
A culturally tailored storytelling video may modestly improve blood sugar in Hispanic adults with diabetes.
Published in
Publication details and source links for this paper.
Wieland ML, Vickery KD, Hernandez V, et al. Digital Storytelling Intervention for Hemoglobin A1c Control Among Hispanic Adults With Type 2 Diabetes: A Randomized Clinical Trial. JAMA Netw Open. 2024;7(8):e2424781. doi:10.1001/jamanetworkopen.2024.24781
HbA1c → ↓ (small improvement)
Motivation and confidence → ↑ (strong increase)
Actual behaviors → → (no measured change)
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This study contributes evidence to Digital storytelling behavioral intervention and HbA1c.
This study contributes evidence to
Primary intervention
Digital storytelling behavioral intervention
Primary outcomes
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Evidence network role
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Core evidence
The primary outcomes reported in this study.
Digital storytelling behavioral intervention → HbA1c
Digital storytelling behavioral intervention → HbA1c
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Hispanic or Latino adults with poorly controlled type 2 diabetes, particularly those who are Spanish-speaking, foreign-born, have limited English proficiency, and receive care in community health centers. May be especially relevant for patients with lower levels of formal education and limited income.
The study was done during COVID-19, which may have created extra stress for participants. Results might be different under normal conditions.
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Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Digital storytelling behavioral intervention and HbA1c.
This study contributes to the evidence on the following intervention-outcome relationships.
Behavioral & Lifestyle
Curated evidence collections and hubs this study is part of.
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Contributes to Digital storytelling behavioral intervention evidence base.
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Measures HbA1c as a key outcome.
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2 results
2 results
2 results
Generated from the study's connected evidence using Evidence Intelligence™.
Digital storytelling behavioral intervention may improve HbA1c.
ConsistencyScore™: Results are consistent across studies.
Ranked evidence signals
HbA1c
EvidenceScore™ Moderate | EvidenceScore™ 69.0 | moderate positive | ConsistencyScore™ Consistent | 1 study
Why this answer: This answer is based on a single supporting study.
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