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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Ann Neurol. 2015 Jul 20;78(3):439–453. doi: 10.1002/ana.24454

Table 3.

Multivariate ANOVA analysis of amyloid status, age, and cognitive impairment on Aβ SILK parameters

Parameters Effect Overall p-value Mean (95% confidence limits)
Aβ42 FTR Amyloid 0.02 Amyloid+ 0.124 (0.112–0.135)
Amyloid− 0.101 (0.086–0.115)
CDR*Amyloid 0.002 CDR=0 Amyloid− 0.091(0.070–0.111)
CDR=0 Amyloid+ 0.143(0.124–0.163)
CDR>0 Amyloid− 0.110(0.093–0.128)
CDR>0 Amyloid+ 0.104(0.093–0.115)
Age 0.21 -
Aβ40 FTR Amyloid 0.62 -
CDR*Amyloid 0.007 CDR=0 Amyloid − 0.082(0.068–0.096)
CDR=0 Amyloid+ 0.096(0.083–0.109)
CDR>0 Amyloid− 0.094(0.083–0.106)
CDR>0 Amyloid + 0.074(0.067–0.081)
Age 0.012 -
Aβ38 FTR Amyloid 0.97 -
CDR*Amyloid 0.007 CDR=0 Amyloid− 0.075(0.062–0.088)
CDR=0 Amyloid + 0.092(0.079–0.104)
CDR>0 Amyloid− 0.088(0.077–0.099)
CDR>0 Amyloid+ 0.071(0.064–0.078)
Age 0.01 -
Aβ42/Aβ40 FTR ratio Amyloid <.0001 Amyloid + 1.448(1.363–1.533)
Amyloid− 1.145(1.036–1.254)
CDR*Amyloid 0.47 -
Age 0.16 -
kex42 Amyloid 0.001 Amyloid+ 0.059(0.042–0.076)
Amyloid− 0.006(−0.016–0.029)
CDR*Amyloid 0.13 -
Age 0.48 -