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
                )

        )

)
1nareshArray
(
    [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 1: Anatomic and clinical characteristics
Demographic Characteristic Platelet Testing/PED Group PED Alone Group P Value
No. (%) of patients 511 (73.2) 187 (26.8) 
Age, y 
    Mean ± SD 58.1 ± 14.1 55.7 ± 13.2 .022
    Median (minimum, maximum) 59 (9, 86) 57 (13, 81) 
No. (%) male 98 (19.2) 40 (21.4) .52
Follow-up duration, mo 
    Mean ± SD 21.5 ± 8.0 23.5 ± 10.1 .20
    Median (minimum, maximum) 20.8 (0.1, 48.0) 21.3 (0.2, 60.5) 
Total no. (%) of aneurysms 601 (74.8) 201 (25.2) 
No. (%) of patients with 
    1 aneurysm 438 (85.7) 176 (94.1) 
    2 aneurysms 61 (11.9) 9 (4.8) .008
    ≥3 aneurysms 12 (2.4) 2 (1.1) 
Mean center volume ± SD, n 65 ± 45 63 ± 32 .06
Median center volume (minimum, maximum), n 47 (21, 149) 69 (19, 149) 
Mean practitioner volume ± SD, n 25 ± 15 21 ± 13 .004
Median practitioner volume (minimum, maximum), n 21 (1, 54) 21 (1, 54) 
Aneurysm size, mm 
    Mean ± SD (n) 10.8 ± 7.7 (595) 12.0 ± 7.7 (200) .01
    Median (minimum, maximum) 8.8 (1.0, 55.0) 10.5 (1.0, 40.0) 
Aneurysm location, % (n/N) 
    Internal carotid artery 78.0 (469/601) 77.1 (155/201) 
    Middle cerebral artery 4.7 (28/601) 3.0 (6/201) 
    Posterior cerebral artery 1.7 (10/601) 1.0 (2/201) .11
    Basilar artery 4.0 (24/601) 8.5 (17/201) 
    Other 11.6 (70/601) 10.4 (21/201) 
    Multiple PEDs used 38.0 (227/598) 27.9 (56/201) .01
Aneurysm shape, % (n/N) 
    Saccular 76.9 (462/601) 77.1 (155/201) 
    Fusiform 13.1 (79/601) 13.4 (27/201) .58
    Dissecting 5.0 (30/601) 6.5 (13/201) 
    Other 5.0 (30/601) 3.0 (6/201)