Table 1.

Characteristics of ALS and PLS patients and controls.

	N	Mean	SD	Min	Max
Control
Age	28	64	10.1	42	78
Disease durarion at baseline (months)	28	N/A	N/A	N/A	N/A
ALSFRS-R at baseline	28	N/A	N/A	N/A	N/A
Sex	28	47% Male
Ethnicity	28	0% Hispanic or Latino; 100% White
ALS
Age	40	62	8.807	43	77
Disease durarion at baseline (months)	40	3.1	2.8	2	10
ALSFRS-R at baseline	35	38.08	5.09	29	46
Sex	40	57.5% Male
Ethnicity	40	10% Hispanic or Latino; 80% White, 7.5% Black, 2.5% other
PLS
Age	28	59	8.81	38	81
Disease durarion at baseline (months)	28	40	25.41	1	96
ALSFRS-R at baseline	28	30.04	5.73	16	42
Sex	28	54% Male
Ethnicity	28	0% Hispanic or Latino; 100% White