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. 2022 Aug 26;2(4):100121. doi: 10.1016/j.ynirp.2022.100121

Table 3.

Linear regression results for regional 31P measurements with whole brain FDG SUV in the AD high-risk cohort (N = 20). Significant correlations (P < 0.01) are shown in bold. Trends (0.01 ≤ P < 0.05) are italicized.

Regression variables 31P-MRS Region α β R2 P
PCr/ATP vs. FDG AD meta region −1.84 3.22 0.361 0.0050
PCr/ATP vs. FDG Inferior parietal lobe −1.49 2.73 0.329 0.0082
PCr/ATP vs. FDG Inferior temporal cortex −3.04 4.69 0.344 0.0066
PCr/ATP vs. FDG Middle frontal gyrus −0.66 1.81 0.070 0.2599
PCr/ATP vs. FDG Posterior cingulate cortex −0.56 1.66 0.078 0.2328
PCr/ATP vs. FDG Precuneus −1.03 2.21 0.219 0.0375
PCr/ATP vs. FDG Prefrontal cortex −0.90 2.07 0.065 0.2774
PCr/ATP vs. FDG Superior temporal cortex −2.26 3.77 0.307 0.0113
PCr/ATP vs. FDG Thalamus −1.76 3.02 0.383 0.0036
Pi/ATP vs. FDG AD meta region −0.98 1.40 0.409 0.0024
Pi/ATP vs. FDG Inferior parietal lobe −0.93 1.38 0.325 0.0087
Pi/ATP vs. FDG Inferior temporal cortex −1.44 1.86 0.580 0.0001
Pi/ATP vs. FDG Middle frontal gyrus −0.46 0.82 0.171 0.0698
Pi/ATP vs. FDG Posterior cingulate cortex −0.32 0.70 0.055 0.3175
Pi/ATP vs. FDG Precuneus −0.60 1.04 0.113 0.1473
Pi/ATP vs. FDG Prefrontal cortex −0.49 0.86 0.168 0.0725
Pi/ATP vs. FDG Superior temporal cortex −1.09 1.50 0.479 0.0007
Pi/ATP vs. FDG Thalamus −0.75 1.16 0.229 0.0328
PME/PDE vs. FDG AD meta region −1.49 2.89 0.273 0.0182
PME/PDE vs. FDG Inferior parietal lobe −1.05 2.56 0.121 0.1335
PME/PDE vs. FDG Inferior temporal cortex −2.23 3.35 0.260 0.0217
PME/PDE vs. FDG Middle frontal gyrus −0.36 1.84 0.012 0.6456
PME/PDE vs. FDG Posterior cingulate cortex −0.31 1.96 0.015 0.6037
PME/PDE vs. FDG Precuneus −1.04 2.63 0.146 0.0961
PME/PDE vs. FDG Prefrontal cortex −0.43 1.86 0.028 0.4769
PME/PDE vs. FDG Superior temporal cortex −1.82 3.13 0.272 0.0185
PME/PDE vs. FDG Thalamus −1.30 2.79 0.195 0.0511
pH vs. FDG AD meta region −0.08 7.09 0.127 0.1238
pH vs. FDG Inferior parietal lobe −0.05 7.05 0.021 0.5412
pH vs. FDG Inferior temporal cortex −0.14 7.18 0.128 0.1210
pH vs. FDG Middle frontal gyrus −0.09 7.09 0.121 0.1326
pH vs. FDG Posterior cingulate cortex −0.11 7.10 0.137 0.1085
pH vs. FDG Precuneus −0.04 7.03 0.008 0.7066
pH vs. FDG Prefrontal cortex −0.10 7.11 0.091 0.1961
pH vs. FDG Superior temporal cortex −0.09 7.11 0.091 0.1965
pH vs. FDG Thalamus −0.11 7.10 0.118 0.1376

α: linear regression slope. β: linear regression intercept. R2: linear regression coefficient of determination.