Validity of the Sedentary Behavior Questionnaire in European Older Adults Using English, Spanish, German and Danish Versions

The main aim of this study was to assess the criterion validity Sedentary Behavior Questionnaire (SBQ) measure SB in community-dwelling older adults using thigh-measured accelerometry as method. 801 participants (75.6 ± 6.1 years old, 57.6% females) provided valid thigh-based accelerometer data (activPAL/Axivity) and completed SBQ. Criterion assessed Spearman’s Rho coefficients. Bland–Altman plots, including 95% limits agreement Intraclass Correlation Coefficient (ICC), were used between self-report device-measured daily time. Strength association examined multiple linear regression. There a weak correlation (Rho = 0.25, p < .001) self-reported device-based measures. SBQ under-estimated time compared accelerometry. Our results highlighted an overall weak-to-moderate measures, with significant differences each country’s version. Researchers should be cautious when provide estimation adults.