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. Author manuscript; available in PMC: 2022 Mar 1.
Published in final edited form as: Neurobiol Aging. 2020 Dec 15;99:11–18. doi: 10.1016/j.neurobiolaging.2020.12.009

Table 2:

Logistic regression modeling with AD as the outcome

Single modality OR (95% CI) C-statistic (95%CI) P-value
DaTQUANT: Putamen z-score 1.13 (1.06, 1.21) 0.916 (0.792, 1.0) <0.001
MRI: HP/TIV 0.17 (0.04, 0.72) 0.739 (0.575, 0.904) 0.016
FDG-PET: CIS ratio 0.09 (0.02, 0.43) 0.878 (0.775, 0.981) 0.002
PiB-PET: global SUVr 2.10 (1.33, 3.31) 0.884 (0.789, 0.980) 0.001
Two modalities
DaTQUANT + MRI
 DaTQUANT 1.16 (1.06, 1.27) 0.968 (0.922, 1.0) 0.001
 MRI 0.03 (0.00, 0.58) 0.02
DaTQUANT + FDG
 DaTQUANT 1.11 (1.03, 1.19) 0.975 (0.941, 1.0) 0.006
 FDG 0.06 (0.00, 0.96) 0.047
DaTQUANT + PiB
 DaTQUANT 1.13 (1.04, 1.24) 0.975 (0.934, 1.0) 0.005
 PiB 1.96 (1.10, 3.50) 0.022
MRI + FDG
 MRI 0.20 (0.03, 1.22) 0.910 (0.818, 1.0) 0.08
 FDG 0.10 (0.02, 0.46) 0.003
MRI + PiB
 MRI 0.05 (0.00, 0.70) 0.931 (0.862, 0.999) 0.026
 PiB 2.60 (1.34, 5.03) 0.005
FDG + PiB
 FDG 0.09 (0.01, 0.63) 0.964 (0.920, 1.0) 0.015
 PiB 2.09 (1.17, 3.71) 0.012
Three modalities
DaTQUANT + FDG + PiB
 DaTQUANT 1.14 (1.00, 1.30) 0.992 (0.976, 1.0) 0.048
 FDG 0.05 (0.00, 1.84) 0.10
 PiB 2.32 (0.94, 5.73 0.069
DaTQUANT + MRI + PiB
 DaTQUANT 1.28 (1.00, 1.63) 0.996 (0.986, 1.0) 0.0496
 MRI 0.00 (0.00, 1.73) 0.066
 PiB 3.43 (1.06, 11.11) 0.0399
DaTQUANT + MRI +FDG
 DaTQUANT 1.16 (1.03, 1.30) 0.987 (0.964, 1.0) 0.014
 MRI 0.04 (0.00, 1.08) 0.055
 FDG 0.04 (0.00, 1.69) 0.093

Odds ratio (OR) represent a 0.1 unit change. DLB is the reference group, so when the OR is greater than 1 this is more likely to occur in ADem and conversely when the OR is less than 1 then it is least likely to occur in ADem individuals. PiB was log transformed.