TABLE 1.

Subjects’ demographic and clinical information.

	Healthy controls (n = 55)	ALS patients (n = 50)	P-value
Age (years)	52.8 ± 6.9	52.3 ± 9.0	0.99
Gender (females/males)	19/36	19/31	0.71
Education (years)	7.8 ± 3.4	7.3 ± 3.9	0.40
Site of onset (bulbar/cervical/lumbosacral)	–	8/33/9	–
Diagnostic category (definite/probable/possible)	–	11/22/17	–
ALSFRS-R score	–	40.7 ± 5.3	–
Disease duration (months)	–	17.4 ± 16.1	–
Disease progression rate	–	0.64 ± 0.59	–

ALS, amyotrophic lateral sclerosis; ALSFRS-R, revised ALS Functional Rating Scale. “–”, no data available.