Table 4:

Gender differences in flows of either individual arteries or regions

Artery or Region	Flow (Female), mL/min	Flow (Male), mL/min	Hypotheses	P
LCCA	366 ± 64	414 ± 73	F ≤ M	< .001
RCCA	345 ± 56	419 ± 82	F ≤ M	< .0001
CC^r	897 ± 139	1006 ± 161	F ≤ M	< .001
LEC^r	99 ± 53	154 ± 56	F ≤ M	< .0001
REC^r	96 ± 41	164 ± 65	F ≤ M	< .0001

Note:—LCCA indicates left common carotid artery; RCCA, right common carotid artery; CC^r, cranial circulation region; LEC^r, left extracranial circulation; REC^r, right extracranial circulation. F ≤ M (or F ≥ M) indicates that the flow for the female group is lower (or higher) than the flow for male group.