TABLE 1.

ALS patients' demographics and clinical characteristics

Characteristic	ALS, n = 143
Gender, M/F	87/56
Age at venipuncture, years	64.0 (55.0–72.0)
Disease duration at venipuncture, months	9.0 (7.0–12.0)
Diagnostic delay, months	7.0 (5.0–10.0)
ALSFRS‐R	41.0 (36.0–44.0)
ΔALSFRS‐R, points/month	0.9 (0.5–1.5)
MRC total score	106.0 (94.8–114.0)
ΔMRC, points/month	1.7 (0.7–2.7)
UMN score	8.0 (4.0–11.0)
ECAS ALS‐specific	71.0 (56.0–84.0)
ECAS ALS‐nonspecific	23.0 (18.0–27.0)
Total ECAS score	93.0 (76.0–109.0)
Mean MEP/cMAP at four limbs	0.2 (0.1–0.3)

Given are median values and interquartile range.

Abbreviations: ALS, amyotrophic lateral sclerosis; ALSFRS‐R, ALS Functional Rating Scale–Revised; ECAS, Edinburgh Cognitive and Behavioural ALS Screen; F, female; M, male; MEP/cMAP, motor evoked potential/compound muscle action potential; MRC, Medical Research Council Scale; UMN, upper motor neuron; ΔALSFRS‐R, ALSFRS‐R progression rate; ΔMRC, MRC progression rate.