Array ( [urn:ac.highwire.org:guest:identity] => Array ( [runtime-id] => urn:ac.highwire.org:guest:identity [type] => guest [service-id] => ajnr-ac.highwire.org [access-type] => Controlled [privilege] => Array ( [urn:ac.highwire.org:guest:privilege] => Array ( [runtime-id] => urn:ac.highwire.org:guest:privilege [type] => privilege-set [privilege-set] => GUEST ) ) [credentials] => Array ( [method] => guest ) ) ) 1naresh

Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

)

Table 2: Characteristics of PVS identified with the automated algorithm
Characteristic P Value^{^a} Females (n = 62) Males (n = 56)
Mean (SD) Range Mean (SD) Range
PVS whole brain 
 PVS total No. <.01 70.7 (36.1) 20–153 98.4 (50.5) 16–287
 PVS total volume (mm³) <.01 241.2 (134) 74.7–617 334.8 (192.4) 43–1103.3
 PVS WM (No./cm³) .02 0.1 (0.07) 0.04–0.36 0.2 (0.1) 0.04–0.6
 PVS volume WM (mm³/cm³) .04 0.5 (0.3) 0.16–1.3 0.7 (0.4) 0.1–2.3
Individual PVS cluster 
 Individual cluster length (mm) .75 3.6 (0.2) 3.3–4.5 3.6 (0.2) 3–4.3
 Individual cluster width (mm) .35 2 (0.07) 1.8–2 2 (0.08) 1.7–2
 Individual cluster volume (mm³) .80 2.9 (0.3) 2.1–3.8 2.8 (0.3) 2–3.6
Cluster volume (mm³) by total cluster (No.) .80 0.05 (0.02) 0.02–0.16 0.03 (0.02) 0.01–0.14
↵a Two-sample t test.

Characteristic	P Value^{^a}	Females (n = 62)		Males (n = 56)
Characteristic	P Value^{^a}	Mean (SD)	Range	Mean (SD)	Range
PVS whole brain
PVS total No.	<.01	70.7 (36.1)	20–153	98.4 (50.5)	16–287
PVS total volume (mm³)	<.01	241.2 (134)	74.7–617	334.8 (192.4)	43–1103.3
PVS WM (No./cm³)	.02	0.1 (0.07)	0.04–0.36	0.2 (0.1)	0.04–0.6
PVS volume WM (mm³/cm³)	.04	0.5 (0.3)	0.16–1.3	0.7 (0.4)	0.1–2.3
Individual PVS cluster
Individual cluster length (mm)	.75	3.6 (0.2)	3.3–4.5	3.6 (0.2)	3–4.3
Individual cluster width (mm)	.35	2 (0.07)	1.8–2	2 (0.08)	1.7–2
Individual cluster volume (mm³)	.80	2.9 (0.3)	2.1–3.8	2.8 (0.3)	2–3.6
Cluster volume (mm³) by total cluster (No.)	.80	0.05 (0.02)	0.02–0.16	0.03 (0.02)	0.01–0.14