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Table 4 Correlation analyses

From: The relationship between physical activity, apolipoprotein E ε4 carriage, and brain health

 Whole sampleCarriersNon-carriers
mθTPAmδTPAmδMVPAmθTPAmδTPAmδMVPAmθTPAmδTPAmδMVPA
RhopRhopRhopRhopRhopRhopRhopRhopRhop
Forward digits− 0.200.03− 0.180.061− 0.200.04− 0.300.09− 0.080.66− 0.040.84− 0.170.14− 0.230.05− 0.280.01
Reverse digits− 0.230.02− 0.210.03− 0.220.03− 0.290.11− 0.230.20− 0.220.23− 0.230.05− 0.220.06− 0.220.06
Logical mem. units− 0.000.96− 0.000.99− 0.030.78− 0.110.54− 0.160.40− 0.120.510.050.650.090.470.060.63
Logical mem. gist− 0.180.07− 0.270.01− 0.230.02− 0.090.62− 0.130.51− 0.090.66− 0.200.10− 0.340.01− 0.300.01
Anxiety0.29< 0.010.220.030.20.050.460.010.280.150.290.130.200.090.190.130.160.18
Depression0.080.4230.080.430.0790.44− 0.040.84− 0.060.72− 0.110.540.140.250.170.170.200.10
Total GM− 0.270.01− 0.29< 0.01− 0.29< 0.01− 0.390.03− 0.440.01− 0.430.02− 0.230.05− 0.230.05− 0.230.05
Amygdala− 0.28< 0.01− 0.27< 0.01− 0.27< 0.01− 0.330.07− 0.410.02− 0.390.03− 0.250.03− 0.210.08− 0.210.07
Hippocampus− 0.260.01− 0.27< 0.01− 0.28< 0.01− 0.50< 0.01− 0.470.01− 0.420.02− 0.160.18− 0.170.15− 0.200.08
Precuneus− 0.140.15− 0.200.04− 0.210.03− 0.150.41− 0.420.02− 0.420.02− 0.110.35− 0.100.42− 0.100.41
Global FA− 0.030.72− 0.080.43− 0.040.69− 0.180.33− 0.160.38− 0.110.56− 0.000.97− 0.040.73− 0.000.98
Uncinate− 0.240.02− 0.180.07− 0.140.16− 0.61< 0.01− 0.440.01− 0.390.03− 0.070.58− 0.070.59− 0.010.91
Parahippocampus− 0.000.96− 0.070.49− 0.030.76− 0.170.37− 0.300.10− 0.220.230.050.680.030.770.070.55
  1. Results for Spearman’s correlation analyses between mean FC-st of each main cluster (mθTPA, mδTPA, and mδMVPA) and a series of AD markers (rho and p values) are shown. The list of variables includes the following: working memory (Forward and Reverse Digit Span—forward and reverse digits); episodic memory (Logical Memory II—delayed recall; for units and gist—logical mem. units and gist); anxiety (Goldberg’s test); depression (Geriatric Depression Scale); total gray matter volume (GM, in cubic millimeter); hippocampus, amygdala, and precuneus volumes (left plus right, in cubic millimeter); global fractional anisotropy (FA); and uncinate and parahippocampal fasciculus fractional anisotropy (left and right weighted arithmetic mean). Outcomes that were significant for α < 0.05 and FDR q = 0.1 are bolded