Table 6.
Model 1 regression results for the fixed factors (beta and p‐values) between MRI#1 and #2 in AFC and NOR males and females
| Fixed factor | Model 1 | ||
|---|---|---|---|
| β‐value ± SEM | p‐value | ||
| WM‐ASL | |||
| Group | −1.674 ± 2.319 | .471 | |
| Age | −0.078 ± 0.053 | .145 | |
| MRI | −0.884 ± 0.611 | .150 | |
| Sex | −1.962 ± 4.681 | .675 | |
| Group:Age | 0.060 ± 0.107 | .575 | |
| Group:MRI | 2.649 ± 1.176 | .026 | |
| Age:MRI | 0.036 ± 0.027 | .181 | |
| Group:Sex | 7.495 ± 5.595 | .181 | |
| Age:Sex | 0.151 ± 0.180 | .401 | |
| MRI:Sex | 1.636 ± 2.365 | .490 | |
| Group:Age:MRI | −0.106 ± 0.054 | .054 | |
| Group:Age:Sex | −0.360 ± 0.230 | .117 | |
| Group:MRI:Sex | −2.274 ± 2.828 | .423 | |
| Age:MRI:Sex | −0.048 ± 0.091 | .601 | |
| Group:Age:MRI:Sex | 0.084 ± 0.116 | .471 | |
| GM‐ASL | |||
| Group | −9.676 ± 11.932 | .418 | |
| Age | −0.438 ± 0.275 | .113 | |
| MRI | −3.851 ± 3.135 | .221 | |
| Sex | −9.148 ± 24.089 | .704 | |
| Group:Age | 0.378 ± 0.553 | .495 | |
| Group:MRI | 10.112 ± 6.035 | .096 | |
| Age:MRI | 0.175 ± 0.138 | .208 | |
| Group:Sex | 32.182 ± 28.790 | .264 | |
| Age:Sex | 0.761 ± 0.926 | .412 | |
| MRI:Sex | 6.533 ± 12.134 | .591 | |
| Group:Age:MRI | −0.437 ± 0.279 | .120 | |
| Group:Age:Sex | −1.611 ± 1.181 | .174 | |
| Group:MRI:Sex | −7.701 ± 14.153 | .596 | |
| Age:MRI:Sex | −0.226 ± 0.466 | .629 | |
| Group:Age:MRI:Sex | 0.311 ± 0.595 | .603 | |
AFC, exposed aircrew subjects; ASL, arterial spin labeling; GM, gray matter; MRI, magnetic resonance imaging; NOR, matched controls; WM, white matter.