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Table 1 Characteristics of included studies

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

Study Race Number of surgery patients Age (mean ± sd., or range) Type of study Onset symptoms Adverse postoperative events (number) Preoperative possible risk factors Quality
Meng 2018 [5] Asian 500 37.5 ± 9.4 Retrospective IS; HS; NS IS (62) age, male sex, ischemic presentation, hypertension, diabetes, Suzuki stage, PCA involvement, surgery type High
Peicong 2017 [7] Asian 87 54.0 ± 3.7 Retrospective IS; HS IS (5) + HS (1) diabetes, PCA involvement High
Meng 2017 [6] Asian 121 35.4 ± 7.5 Prospective IS; NS IS (7) + HS (2) age, male sex, diabetes, hypertension, PCA involvement, Suzuki stage, surgery type High
Wonhyoung 2016 [8] Asian 194 37.2 ± 11.4 Retrospective IS; HS; NS IS (43) Infarction, TIA, PCA involvement, surgery type High
Antonucci 2015 [9] Caucasian 31 18–67 Retrospective IS; NS IS (8) Infarction High
Tackeun 2015 [10] Asian 201 38.3 ± 11.6 Retrospective IS; NS IS (4) + HS (1) age, male sex, Suzuki stage Fair
Gross 2013 [11] Caucasian 45 39.2 ± 12.2 Prospective IS; HS; NS IS (5) + HS (1) age, Infarction, surgery type High
Xiangyang 2012 [12] Asian 470 36.8 (18–59) Prospective IS; HS; NS IS (43) + HS (17) age TIA, PCA involvement, male sex, infarction, Suzuki stage High
  1. IS ischemic stroke, HS hemorrhagic stroke, NS nonspecific symptom, sd. standard deviation