Table 1. Clinical and biochemical characteristics of ALS patients and control subjects.

ALSFRS-R, ALS functional rating scale-revised; BMI, body mass index.

ITEMS	Control	ALS
Cohort size	48	48
Gender ratio (F/M)	18/30	18/30
Age at collection (years)	54.1 [31.7–66.6]	54.9 [34.9–68.7]
Duration (days)	N/A	809 ± 75.3
ALSFRS-R (score)	N/A	29.8 ± 1.3
Site at onset (bulbar/spinal)	N/A	14/35
BMI (kg/m²)	N/A	23.6 ± 0.6
Triglycerides (g/L)	1.24 ± 0.1	1.44 ±0.1
Total cholesterol (g/L)	2.60 ± 0.2	2.54 ± 0.2
Free fatty acid (mM)	0.12 ± 0.0	0.27 ± 0.1	*
Leptin (ng/mL)	9.66 ± 1.5	6.11 ± 0.9	*

*p<0.05 (Mann-Withney test).