Table 2:
Comparison of clinical and demographic characteristics based on steal statusa and ischemic events
| Steal Statusa |
P Value | Ischemic Events |
P Value | |||
|---|---|---|---|---|---|---|
| No Steal (n = 12) | Steal (n = 25) | No (n = 26) | Yes (n = 11) | |||
| Age at baseline CVR (median) (IQR, 25–75) (yr) | 9.3 (5.6–14.5) | 10.8 (8.3–15) | .28 | 10.9 (8.3–15) | 10.3 (7.2–12.5) | .44 |
| Female (No.) (%) | 5 (41.7) | 16 (64) | .29 | 14 (53.9) | 7 (63.6) | .72 |
| Moyamoya classification (No.) (%) | .69 | .06 | ||||
| Idiopathic | 4 (33.3) | 10 (40) | 7 (26.9) | 7 (63.6) | ||
| Syndromicb | 8 (66.7) | 15 (60) | 19 (73.1) | 4 (36.4) | ||
| NF1 | 2 (16.7) | 7 (28) | 7 (26.9) | 2 (18.2) | ||
| Trisomy 21/other chromosomal disorders | 3 (25) | 4 (16) | 6 (23.1) | 1 (9.1) | ||
| Sickle cell disease | 1 (8.3) | 4 (16) | 4 (15.4) | 1 (9.1) | ||
| Postradiation vasculopathy | 2 (16.7) | 0 | 2 (7.7) | 0 | ||
| Stroke (No.) (%) | 4 (33.3) | 8 (32) | 1 | 11 (42.3) | 1 (9.1) | .06 |
| TIA (No.) (%) | 2 (16.7) | 6 (24) | 1 | 5 (19.2) | 3 (27.3) | .67 |
| Seizure (No.) (%) | 2 (16.7) | 1 (4) | .24 | 2 (7.7) | 1 (9.1) | 1 |
| Headaches (No.) (%) | 3 (25) | 5 (20) | 1 | 6 (23.1) | 2 (18.2) | 1 |
| Asymptomatic (No.) (%) | 2 (16.7) | 4 (16) | 1 | 3 (11.5) | 3 (27.3) | .33 |
| Others (No.) (%) | 0 | 2 (8.3) | .54 | 0 | 2 (18.2) | .08 |
| Moyamoya laterality (No.) (%) | .77 | .78 | ||||
| Left | 3 (25) | 5 (20) | 6 (23.1) | 2 (18.2) | ||
| Right | 1 (8.3) | 5 (20) | 5 (19.2) | 1 (9.1) | ||
| Bilateral | 8 (66.7) | 15 (60) | 15 (57.7) | 8 (72.7) | ||
Note:—NF1 indicates neurofibromatosis type 1.
a
Steal status before ischemic event occurrence or the end of follow-up.
b
Comorbidities falling under syndromic moyamoya are shown for informative purposes only and were not included in the inferential analysis.