Fig. 3From: Comparison of self-reported & device-based, measured physical activity among children in GermanyDifferences between numbers of days with MVPA ≥60 min measured by PAQ and ACC (DiffPAQ-ACC) for the three age groups by gender in %, mean difference for boys and girls, including SD. Zero on the X-axis means the same number of days with MVPA ≥60 min measured by PAQ and ACCBack to article page