RA App Overestimates Active Disease - Takeaway - MDSpire
From the Journals

RA App Overestimates Active Disease

Self-reported joint counts showed modest agreement with physician assessments and tended to overestimate active disease in a community-based study

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  • 1

    Smartphone app shows modest agreement with physician joint counts.

  • 2

    High PPV (95%) for identifying low disease activity.

  • 3

    Limited ability to detect active disease (50% NPV).

  • 4

    Patients reported higher joint counts than physicians.

  • 5

    Fibromyalgia and osteoarthritis linked to tender joint counts.

  • 6

    Modest agreement may reflect patient environment and timing issues.

Original Source(s)

RA App Overestimates Active Disease

  • by Andrea Surnit

  • April 7, 2026

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