Table 6.
Variable | Pearson correlation | Multiple regression# | ||||||||||||
(n = 82–112) | ||||||||||||||
Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | Model 6 | |||||||||
β | p | β | p | β | p | β | p | β | p | β | p | β | p | |
LntHcy-_1 | –0.37 | 0.000 | ||||||||||||
LnPOase_1 | –0.04 | 0.710 | –0.54 | 0.053 | –0.16 | 0.192 | ||||||||
LnPhAcase_1 | 0.01 | 0.942 | –0.32 | 0.012 | –0.29 | 0.015 | ||||||||
PON1-Q192R | 0.00 | 0.998 | –0.14 | 0.231 | –0.05 | 0.655 | 0.40 | 0.125 | ||||||
LnFe_1 | –0.19 | 0.090 | ||||||||||||
LnAtrophy_rate | –0.30 | 0.008 | –0.24 | 0.053 | –0.21 | 0.054 | –0.22 | 0.089 | –0.26 | 0.047 | –0.24 | 0.068 | –0.22 | 0.087 |
LnHVLT-DR_1 | 0.55 | 0.000 | 0.46 | 0.000 | 0.44 | 0.001 | 0.38 | 0.004 | 0.41 | 0.002 | 0.40 | 0.002 | 0.38 | 0.003 |
APOE | –0.21 | 0.038 | ||||||||||||
BDNF V66M | 0.05 | 0.641 | 0.31 | 0.010 | 0.29 | 0.015 | 0.31 | 0.015 | 0.38 | 0.004 | 0.36 | 0.005 | 0.31 | 0.010 |
Age | –0.33 | 0.000 | ||||||||||||
Sex | 0.14 | 0.167 | ||||||||||||
F = 4.68, | F = 5.23, | F = 3.93, | F = 4.14, | F = 4.41, | F = 4.93, | |||||||||
p = 0.000, | p = 0.000, | p = 0.000, | p = 0.000, | p = 0.000, | p = 0.000, | |||||||||
Adjusted | Adjusted | Adjusted | Adjusted | Adjusted | Adjusted | |||||||||
R2 = 0.37 | R2 = 0.37 | R2 = 0.29 | R2 = 0.34 | R2 = 0.32; | R2 = 0.32 |
*Ln, natural logarithm; PhAcase, phenylacetate hydrolase; POase, paraoxonase; _1, baseline; _2, end of study. # Adjusted for sex, LnAnti-N-Hcy_1, LntHcy_1, and APOE genotype. LntHcy_1 was not significant in any of the models.