Table 1. Patient demographics.

Disease ID	Cases	Mean age (years±s.d.)	Min age (years)	Max age (years)	Male:female	Self-reported ethnicity as Caucasian (%)	Family history of neurodegeneration?
Total	216	69.4±7.8	40	85	140:76	82.3	Mainly sporadic
Alzheimer’s disease/mild cognitive impairment	40 (18.5%)	74.5±6.6	59	85	24:16	93.3
Amyotrophic lateral sclerosis	22 (10.2%)	61.9±9.1	40	77	12:10	67.9
Frontotemporal dementia	21 (9.8%)	68.8±6.6	55	79	10:11	82.6
Parkinson’s disease	56 (25.9%)	68.0±5.9	57	82	43:13	83.8
Vascular cognitive impairment	77 (35.6%)	70.2±7.4	55	85	51:26	84.0