Comparison of parameters in relation with the number of falls.

Note: the number of falls was only assessed for patients with stable and AECOPD, and not for controls. § Data is presented as number of individuals and (percentage). p value was calculated with chi-square for trend test. ¥ Data is presented as median and [interquartile range]. p value was calculated with Kruskal-Wallis test. Comparison of parameters in relation with the number of falls.