Cognitive Intraindividual Variability and White Matter Integrity in Aging

Table 1

Participants’ demographic information.

	Young	Old	Age effects*
Age	21.58 (3.83)	69.85 (5.64)	<.001
Mill Hill	32.25 (2.83)	37.15 (5.58)	.04
PM38	51.50 (3.23)	39.15 (8.72)	<.001
Education level	17 (1.73)	9.61 (1.45)	<.001

Mean values (standard deviation). *P values.