Data Supplement

Six tables; six Word documents.

Files in this Data Supplement:

• E1 - Table (E)T-1: K-Means Cluster Analysis –Combined Patient and Control Data; Word document.
• E2 - Table (E)T-2: Distribution of Control and ALS patients by Cluster; Word document.
• E3 - Table (E)T-3: Comparison of ALS patients to Normal Controls; Word document.
• E4 - Table (E)T-4: Percentage of patients in each cognitive category by classification method; Word document.
• E5 - Table (E)T-5: Neuropsychologic test performance of ALS patients by cognitive cluster; Word document.
• E6 - Table (E)T-6: Relationship between cognitive impairment and clinical disease variables; Word document.