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Table 1: Baseline variables
Total Reduction of Choroidal Anastomosis P Value
Yes No
No. of hemispheres 80 68 12 NA
Revascularization area (mean) (%)^{^a} 
 Posterior to CS 13.6 (SD, 7.7) 15.2 (SD, 7.1) 4.2 (SD, 3.4) <.001
 Anterior to CS 12.6 (SD, 7.0) 12.5 (SD, 6.7) 13.2 (SD, 8.9) .74
Median age (yr) (IQR) 12 (8–36) 11 (8–33) 19.5 (5.25–47.5) .57
Female (%) 47 (58.8) 43 (63.2) 4 (33.3) .05
Hemorrhagic presentation (%) 17 (21.3) 12 (17.7) 5 (41.7) .06
Median Suzuki stage (IQR) 3 (3–3) 3 (3–3) 3 (2–3) .33
PCA involvement (%) 10 (12.5) 10 (14.7) 0 .34
SPECT stage 2 
 MCA territory (%) 37 (46.3) 32 (47.1) 5 (41.7) .73
 Posterior MCA territory (%) 27 (33.8) 25 (36.8) 2 (16.7) .17
Addition of EMS (%) 21 (26.3) 16 (23.5) 5 (41.7) .19
Note:—EMS indicates encephalomyosynangiosis; IQR, interquartile range; NA, not applicable.
↵a Percentage relative to whole supratentorial area.