Table 1. Demographic and variable data.

Subjects	Age	MAP	VO2 (ml/kg/min)	WMH Volume (% ICV)
n = 76	65.4 (3.9)	92.9 (6.0)	29.6 (8.6)	0.19 (0.21)
Female n = 47	65.4 (4.1)	93.2 (5.8)	27.1 (5.9)	0.22 (0.25)
Male n = 29	65.3 (3.8)	92.4 (6.2)	33.7** (10.7)	0.13 (0.11)

Abbreviations: MAP = mean arterial pressure; VO₂ = volume of oxygen; ml = milliliters; kg = kilograms; min = minute; WMH = white matter hyperintensity; ICV = intracranial volume. Note: values are means and values in parentheses are S.D.

**P = .006.