. Author manuscript; available in PMC: 2014 Jun 27.

Published in final edited form as: J Neurol. 2014 Mar 28;261(6):1073–1079. doi: 10.1007/s00415-014-7314-y

Table 1.

Mean (±SD) demographic and clinical characteristics of patients with amyotrophic lateral sclerosis spectrum and Parkinson’s disease spectrum disorders

	Amyotrophic lateral sclerosis	Parkinson’s disease	Healthy seniors
Age (years)^a	59.28 ± 11.25	70.82 ± 7.26	68.85 ± 9.56
Education (years)	14.46 ± 2.81	15.68 ± 2.03	16 ± 3.48
Disease duration (years)	3.53 ± 2.65	9.20 ± 4.97	N/A
Motor symptom severity, ALS (ALS functional rating scale, max = 48)	29.2 ± 10.09	N/A	N/A
Motor symptom severity, PD (UPDRS part 3)	N/A	29.24 ± 9.04	N/A
MMSE (max = 30)	27.47 ± 3.08^*	26.59 ± 4.32^*	29.25 ± .27

UPDRS Unified Parkinson’s Disease Rating Scale

According to paired t tests,

differs from healthy seniors p <0.01

ALS patients were significantly younger than healthy seniors (t = 2.95; p <0.008) and patients with PD spectrum disorder (t = 4.29; p <0.001)