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Table 4 Cross-sectional associations between 27-OH, cognition, and neuroimaging markers at baseline

From: 27-Hydroxycholesterol, cognition, and brain imaging markers in the FINGER randomized controlled trial

 

Model 1, β (p)

Model 2, β (p)

Model 3, β (p)

Cognition

 NTB total composite

−0.28 (0.04)

−0.42 (0.01)

−0.22 (0.12)

 NTB memory

−0.36 (0.01)

−0.59 (0.00)

−0.27 (0.08)

 NTB processing speed

−0.20 (0.20)

−0.27 (0.14)

−0.16 (0.34)

 NTB executive function

−0.09 (0.53)

−0.08 (0.62)

−0.08 (0.57)

MRI

 Total gray matter volume

−0.27 (0.09)

−0.45 (0.01)

−0.08 (0.61)

 Hippocampal volume

−0.31 (0.04)

−0.48 (0.00)

−0.14 (0.31)

 AD signature cortical thickness

0.01 (0.98)

0.01 (0.96)

−0.15 (0.42)

 White matter lesion volume

0.24 (0.13)

0.31 (0.10)

0.21 (0.22)

FDG-PET

 Cortical composite

−0.22 (0.16)

−0.27 (0.11)

−0.08 (0.66)

 Prefrontal cortex

−0.03 (0.86)

−0.04 (0.82)

−0.08 (0.66)

 Parietal cortex

−0.27 (0.09)

−0.30 (0.09)

−0.16 (0.38)

 Lateral temporal cortex

−0.21 (0.21)

−0.27 (0.14)

−0.13 (0.48)

 Precuneus

−0.28 (0.10)

−0.32 (0.09)

−0.11 (0.55)

 Anterior cingulate gyrus

−0.17 (0.27)

−0.20 (0.24)

−0.09 (0.62)

 Posterior cingulate gyrus

−0.20 (0.23)

−0.30 (0.08)

−0.02 (0.91)

 Medial temporal cortex

−0.02 (0.90)

−0.14 (0.44)

−0.05 (0.80)

 Lateral occipital cortex

−0.31 (0.07)

−0.29 (0.11)

−0.40 (0.04)

 Striatum

−0.28 (0.10)

−0.26 (0.15)

−0.27 (0.16)

 Cerebellum

0.00 (0.98)

−0.05 (0.81)

0.21 (0.25)

PIB-PET

 Cortical composite

−0.06 (0.73)

−0.08 (0.67)

−0.02 (0.91)

  1. Values are standardized β coefficients (p values) from linear regression models with cognitive and neuroimaging measures (left column) as dependent variables and 27-OH as an independent variable. Model 1 was adjusted for age, self-reported lipid-lowering medication (and/or diabetes medication for FDG-PET measures), education (for cognitive measures), and time between blood sample collection and brain scan (for MRI, FDG- and PIB-PET measures). Model 2 was additionally adjusted for serum total cholesterol. Model 3 was additionally adjusted for sex. p values considered significant (bold) if < 0.05. AD signature cortical thickness was calculated as the average of cortical thickness in the entorhinal, inferior temporal, middle temporal, and fusiform regions. FDG-PET and PiB-PET cortical composite scores were calculated as the average across prefrontal, parietal, lateral temporal, precuneus, anterior cingulate, and posterior cingulate cortex
  2. NTB, neuropsychological test battery; MRI, Magnetic Resonance Imaging; AD, Alzheimer’s disease; FDG-PET, 2-deoxy-2-fluorine-18fluoro-d-glucose Positron emission tomography; PiB, 11 C-Pittsburgh compound B