Inter-unit variability in the accuracy of the estimation of processed walking distances according to the covered distance, for the four DG100 units; the typical error of the estimate (TEEa) and the coefficient of variation (CVa) with 95% Confidence Interval [95% CI] are presented.

TEEa is expressed in meters and CVa in percentage. In the terms “TEEa” and “CVa”, “a” means accuracy. For CVa comparisons and for each DG100 unit, superscript number indicates a significant difference with the corresponding DG100 number. For all comparisons with significant difference, P<0.05.