Heart failure & cardiomyopathies
Association Between Wearable Device Measured Activity and Patient-Reported Outcomes for Heart Failure
Authors' conclusion
Daily step count was nonlinearly associated with health status at baseline and over time in patients with heart failure.
Study context
- Population
- Patients with HF and a compatible smartphone in the CHIEF-HF trial, given a Fitbit Versa 2
- Participants
- 425 patients
- Comparison
- Fitbit-measured daily step count and floors climbed vs KCCQ scores
- Primary endpoint
- Association of daily step count and floors climbed with KCCQ total symptom (TS) and physical limitation (PL) scores at baseline and their changes
- Follow-up
- Baseline; changes between 2 and 12 weeks
Methodological details44.5% women, 40.9% with reduced EF
- 44.5% women, 40.9% with reduced EF
Primary result
As reported in the abstract
Baseline daily step count by KCCQ-TS category
P < 0.001
- Changes in daily step count significantly associated with nonlinear changes in KCCQ-TS
- P = 0.004
- Changes in daily step count significantly associated with nonlinear changes in KCCQ-PL
- P = 0.003
Further findings
- Floors climbed associated with baseline KCCQ scores alone
Original publication
Association Between Wearable Device Measured Activity and Patient-Reported Outcomes for Heart Failure. JACC Heart Fail. Published 26 July 2023. doi:10.
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