Fig. 3

a, b and c Two-way scatter plots with logit link generalized linear models between absolute measurement error in % and observed steps (criterion) of Misfit Shine (a), Garmin Vivofit 3 (b) and Jawbone UP Move (c) physical activity monitors. Each figure includes results from the left hip, right hip, left wrist and right wrist. Red digits “1” and lines equal participants with rollators and blue digits “0” and lines equal participants without rollators. Y-axis represent absolute measurement error in % as a response to the x-axis which is number of observed steps