Table 2.

Cerebral hemodynamics

Variables	All Subjects (n = 153)	Men (n = 79)	Women (n = 74)	P Value Men vs. Women
End-tidal carbon dioxide (n = 127)	39 ± 6	39 ± 6	39 ± 6	0.66
Mean arterial pressure, mmHg	89 ± 11	90 ± 11	88 ± 10	0.18
MCAv, cm/s	61 ± 15	57 ± 13	64 ± 16	<0.01
Cerebral pulsatility index	0.77 ± 0.20	0.79 ± 0.21	0.75 ± 0.18	0.30

Cerebral hemodynamic data are means ± SD. Cerebral hemodynamic variables, end-tidal carbon dioxide, and mean arterial pressure were measured at rest. Cerebral pulsatility index was measured in the middle cerebral artery. MCAv, middle cerebral artery blood velocity.