TABLE 2.

Spearman rank order correlations of 25(OH)D₃ and MK4 between brain regions of older adults in the MAP study¹

	25(OH)D3		MK4
	Unadjusted	Adjusted for storage time	Unadjusted	Adjusted for storage time
AWS-CR	0.89	0.89	0.79	0.80
AWS-MF	0.91	0.90	0.83	0.82
AWS-MT	0.90	0.89	0.82	0.82
CR-MF	0.93	0.92	0.87	0.88
CF-MT	0.94	0.94	0.89	0.89
MF-MT	0.95	0.94	0.90	0.90

¹All correlations are significant at P < 0.001. n = 499 subjects. 25(OH)D₃, 25-hydroxycholecalciferol; AWS, anterior watershed; CR, cerebellum; MAP, Memory and Aging Project; MF, midfrontal cortex; MK4, menaquinone-4; MT, mid-temporal cortex.