Why the study?
Do single-item self-report questions accurately assess physical inactivity in patients with chronic heart failure compared to accelerometry?
Population
106 patients with chronic heart failure
Comparison
Two single-item self-report questions relating… vs Accelerometer activity counts (worn for 1 week)
Design
Cross-sectional
Follow-up
1 week
Key result
Single-item self-report questions to assess physical inactivity in heart failure patients showed weak correlations with accelerometer counts (ρ=0.24, P=0.016) and predicted inactivity with 92% specificity.
Authors
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High-specificity self-report screening may identify inactive HF patients; leaves open validation against accelerometry in prospective cohorts.
Cross-Sectional (n=106)
Do single-item self-report questions accurately assess physical inactivity in patients with chronic heart failure compared to accelerometry?
Effect estimate: ρ = 0.24
p-value: p=0.016
A single-item self-report question provides high-specificity screening to identify physically inactive heart failure patients, though sensitivity is low.
Blomqvist et al. (2020) conducted a cross-sectional in Chronic Heart Failure (n=106). Single-item self-report (SR) questions vs. Accelerometer activity counts was evaluated on Correlation between accelerometer activity counts and the SR items (ρ = 0.24, p=0.016). Single-item self-report questions to assess physical inactivity in heart failure patients showed weak correlations with accelerometer counts (ρ=0.24, P=0.016) and predicted inactivity with 92% specificity.