Table 1.

Characteristics of ALS patients and healthy controls.

Variables	ALS patients (n = 32)	Controls (n = 32)
Male, n	19	14
Age at sample collection, mean (SD)	54.7 (10.2)	38.6 (10.0)
Age of onset, mean (SD) Site of onset, n	53.5 (10.2)	–
Bulbar	10	–
Limb	22	–
Disease duration (months), median (IQR)	11.5 (11.0)	–
ALSFRS-R score, median (IQR)	37 (11)	–
DALSFRS-R, median (IQR) King's stage, n	0.9 (1.0)	–
2	14	–
3	6	–
4	12	–

ΔALSFRS-R: (48 - ALSFRS-R at baseline)/duration from symptom onset to baseline clinical diagnosis in months. ALS: Amyotrophic lateral sclerosis; ALSFRS-R: Revised ALS Functional Rating Scale; IQR: Interquartile range; SD: Standard deviation.