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. Author manuscript; available in PMC: 2016 Feb 1.
Published in final edited form as: Hum Brain Mapp. 2015 Nov 6;37(2):621–631. doi: 10.1002/hbm.23054

Table 2.

Regression analysis.

Model (R2) Predictors of DAT availability Beta p
1 (0.19) WMH −0.37    0.01
PIB status   0.10    0.47
Age −0.18    0.41
Sex −0.11    0.41
2 (0.32) WMH −0.42 < 0.01
PIB status   0.18    0.14
Age −0.03    0.85
Whole brain volume −0.05    0.78
Ventricular volume   0.08    0.60
T1 signal inhomogeneity −0.11    0.39
T2 signal   0.48 < 0.01
Sex −0.04    0.77
3 (0.51) WMH −0.11    0.41
PIB status   0.12    0.23
Age −0.10    0.49
T2 signal   0.37 < 0.01
Systolic blood pressure −0.41    0.01
Blood pressure medication −0.22    0.09
Sex   0.07    0.52