FIGURE 2.

Correlations of (a) the Hammersmith Functional Motor Scale Expanded (HFMSE) and the Revised version of the Amyotrophic Lateral Sclerosis Functional Scale (ALSFRS‐R), (b) the HFMSE and the Egen Klassifikation 2 (EK2); (c) the HFMSE and the 6‐Minute Walk Test (6MWT), (d) the Revised Upper Limb Module (RULM) and the ALSFRS‐R, (e) the RULM and the EK2, (f) the RULM and the 6MWT, (g) the RULM and the HFMSE, (h) the EK2 and the ALSFRS‐R and (i) the 6MWT and the ALSFRS‐R. Scatter plots with trend lines were estimated by local regression to analyse possible floor and ceiling effects of the different scales. [Colour figure can be viewed at wileyonlinelibrary.com