Table 1.

Demographics and clinical and pathologic diagnoses of participants

N	19
Age at disease onset, median	63 y
Age at LP, median	68 y
Years of symptoms at time of LP, median	5 y
Sex	14 men (74%)
Clinical phenotype	No., (%)
PPA	9 (47%)
FTD	8 (42%)
PSP	2 (11%)
Pathologic diagnosis	No., (%)
AD	9 (47%)
FTLD-tau	6 (32%)
FTLD-FUS	1 (5%)
LBD	2 (11%)
DLS	1 (5%)

Abbreviations: AD, Alzheimer’s disease; DLS, diffuse leukoencephalopathy with spheroids; FTD, frontotemporal dementia; FTLD, frontotemporal lobar degeneration; LBD, Lewy body disease; LP, lumbar puncture; PPA, primary progressive aphasia; PSP, progressive supranuclear palsy; FUS, fused in sarcoma.