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Designing Survey-Based Mobile Interfaces for Rural Patients With Cancer Using Apple's ResearchKit and CareKit:

Alyssa Donawa1, Christian Powell2, Rong Wang3

  • 1Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, United States.

JMIR Formative Research
|September 26, 2024
PubMed
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This summary is machine-generated.

Mobile health app interfaces using open-source libraries show good usability for rural cancer patients. Minimal design changes can improve access for older adults with limited digital literacy.

Area of Science:

  • Digital Health
  • Health Informatics
  • Human-Computer Interaction

Background:

  • Health technology access is unequal, particularly for older adults and rural populations.
  • Limited digital literacy hinders mobile health (mHealth) adoption among these demographics.
  • System usability remains a critical barrier to mHealth utilization.

Purpose of the Study:

  • To evaluate the usability of mobile app interfaces for rural cancer patients.
  • To determine if open-source libraries (Apple's ResearchKit and CareKit) offer sufficient usability with minimal design changes.
  • To assess usability without a co-design process.

Main Methods:

  • Developed Assuage research platform for mHealth studies.
  • Pilot study assessed usability of 4 mobile UIs from open-source libraries.
Keywords:
CareKitHealthKitappsdigital dividedigital literacydistressehealth adoptionehealth literacymHealthmobile healthpatients with cancerrural healthusabilityusability testing

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  • Recruited 30 cancer patients for in-person distress assessment using randomly selected UIs.
  • Collected data on demographics, mHealth use, and System Usability Scale (SUS) scores.

    • Main Results:

    • 80% of participants were over 50, 83% from rural areas, 63% had high school education or less, and 70% were unfamiliar with mHealth apps.
    • Mean SUS score was 75.8; two UIs achieved scores ≥80, meeting industry standards.
    • Key usability issues involved data input, navigation, scrolling, and screen traversal.

    Conclusions:

    • Most cancer patients rated Assuage interfaces as above-average usability (SUS >68).
    • Apple's ResearchKit and CareKit libraries can provide usable interfaces for older, rural users with few modifications.
    • Simplifying design by omitting co-design is feasible when resources are limited, maintaining usability for less tech-savvy users.