Table 1.

Characteristics of ALS patients and controls.

	ALS (n = 104)	Controls (n = 145)	P value
Mean age (years ± SD)	67.6 ± 9.6	68.4 ± 15.6	0.520
Sex ratio (male/female)	1.08	1.13	0.898
CRP (mg/L ± SD)	5.0 ± 6.9	4.7 ± 7.4	0.958
Plasma creatinine (μmol/L ± SD)	76.2 ± 16.5	117.7 ± 55.8	<0.0001
eGFR MDRD (mL/min ± SD)	86.2 ± 24.4	62.1 ± 24.5	<0.0001
Bulbar onset (%)	40.8
Body weight at diagnosis (kg ± SD)	67 ± 14

Differences were considered significant at P < 0.05*.