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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Neurobiol Aging. 2012 Apr 13;34(1):62–72. doi: 10.1016/j.neurobiolaging.2012.03.006

Table 2.

Number of ADNI participants who met biomarker enrichment criteria at baseline.

Enrichment strategy CN participants meeting criteria, n (%) MCI participants meeting criteria, n (%)
ApoE ε4 carrier status 58 (27.0) 194 (53.3)
CSF Aβ <192 pg/mL 40 (38.1) 135 (67.5)
CSF tTau>93 pg/mL 20 (19.0) 78 (39.0)
CSF pTau>23 pg/mL 39 (37.1) 127 (63.5)
CSF ratio tTau/Aβ>.39 38 (36.2) 126 (63.0)
CSF ratio pTau/Aβ>.1 51 (48.6) 142 (71.0)
FDG-PET <1.14 15 (14.7) 78 (37.9)
Hippocampal volume <3070.5 mm3 48 (22.3) 179 (49.2)
Lateral ventricle volume 28,216.5 mm3 74 (34.4) 180 (49.4)