FOXK2 and Alzheimer disease: Adjusting for the potential effects of age, we observed a significant overall effect of group on AD of the left IFOF (R = 5.62, p = 0.0265), ILF (F = 9.34, p = 0.0054), SLF (F = 5.7, p = 0.0252), and VOF (F = 5.43, p = 0.0285); as well as the right IFOF (F = 16.95, p = 0.0004), ILF (F = 9.31, p = 0.0055), and SLF (F = 7.67, p = 0.0107) (Table 5).