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Published on: February 3, 2022
Exploring digital health user engagement: General app usage patterns from a clinical trial with the mLab App
Thomas F Scherr1, Austin Hardcastle1, Carson P Moore1
1Department of Chemistry, College of Arts and Science, Vanderbilt University, Nashville, Tennessee, United States of America.
PLOS Digital Health
|June 25, 2026
Summary
Analyzing user interaction data (paradata) from a digital health app for HIV testing revealed usage patterns and feature gaps. This data can improve digital health tool sustainability and scalability for at-risk populations.
Area of Science:
- Digital Health
- Health Informatics
- Mobile Health Interventions
Background:
- Digital health applications are rapidly expanding but often face sustainability and scalability challenges.
- Paradata, or user interaction data, offers a method to understand user behavior within software without disrupting the user experience.
Purpose of the Study:
- To analyze paradata from a mobile health application designed for at-home HIV testing.
- To identify user behavior patterns, feature usage, and navigational paths within the application.
Main Methods:
- Analysis of longitudinal, session-level interaction logs from the mLab App.
- Evaluation of application-level usage statistics and temporal patterns in user activity.
- Study conducted within a multi-site randomized clinical trial involving at-risk populations.
Main Results:
- Observed distinct temporal patterns in login events and HIV testing behaviors.
- Identified feature gaps and common user navigational pathways within the application.
- Demonstrated the value of paradata in understanding user engagement with digital health tools.
Conclusions:
- Paradata, though often underutilized, provides crucial insights into user behavior for digital health applications.
- Analyzing paradata can guide targeted revisions, enhance feature development, and improve the long-term impact and scalability of digital health interventions.
- This approach deepens the understanding of user engagement, enabling the creation of more effective and sustainable digital health solutions for at-risk populations.
