Key result
Commonly used self-report physical activity questionnaires showed poor agreement with objective measures (Kappa 0.07 to 0.19) and low sensitivity for correctly classifying inactive individuals.
Why the study?
Do self-report physical activity questionnaires accurately categorize individuals as physically active or inactive compared to objective measures in healthy individuals?
Cross-Sectional (n=1,713)
Yes
Do self-report physical activity questionnaires accurately categorize individuals as physically active or inactive compared to objective measures in healthy individuals?
Effect estimate: Kappa 0.07 (95% CI 0.02 to 0.12)
Absolute Event Rate: 84.2% vs 48.5%
p-value: p=<0.001
Self-reported physical activity questionnaires show low agreement with objective measures, suggesting that population levels of physical activity derived from self-reports should be interpreted cautiously.
No takes yet. Share an insight, caveat, or question.
Self-report physical activity questionnaires warrant cautious interpretation in practice and research; leaves open their accuracy versus objective measures.
Steene‐Johannessen et al. (2015) conducted a cross-sectional in Healthy individuals (n=1,713). Self-report physical activity questionnaires (IPAQ, RPAQ, EPIC-PAQ) vs. Objectively measured physical activity (combined heart rate and movement sensing) was evaluated on Agreement between self-reported (IPAQ) and objectively measured physical activity for categorizing individuals as meeting physical activity recommendations (Kappa 0.07, 95% CI 0.02 to 0.12, p=<0.001). Commonly used self-report physical activity questionnaires showed poor agreement with objective measures (Kappa 0.07 to 0.19) and low sensitivity for correctly classifying inactive individuals.
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