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Table 2 Results of pooled OR with 95%CI and Begg’s test for preoperative possible risk factors

From: Risk factors for postoperative stroke in adults patients with moyamoya disease: a systematic review with meta-analysis

Preoperative possible risk factors Number of articles I 2 P value for heterogeneity Pooled OR(95%CI) P for pooled results P for Begg’s test
Ischemic events 5 74.4% 0.001* 1.40 (1.02–1.92) 0.039* 0.230
PCA involvement 5 83.4% 0.000* 2.64 (1.17–5.95) 0.019* 0.806
Suzuki stage 4 32.8% 0.215 1.20 (0.97, 1.49) 0.101 0.734
Surgery type (DB as reference) 4 0.0% 0.601 1.12 (1.03, 1.33) 0.017* 0.806
Age 5 38.2% 0.167 1.02 (1.00, 1.04) 0.090 0.806
Mae sex 4 0.0% 0.595 1.16 (0.75–1.82) 0.504 1.000
Diabetes 3 5.9% 0.345 4.02 (1.59, 10.16) 0.003* 0.296
Hypertension 2 0.0% 0.494 0.70 (0.31, 1.58) 0.392
  1. DB direct bypass
  2. *p < 0.05