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Table 1 Descriptive summary of the studies included in the meta-analysis for the association between the circle of Willis and ischemic stroke, 2020

From: Association between circle of Willis and ischemic stroke: a systematic review and meta-analysis

S.no

Author

Publication year

Country

Sample size

Male sex

Mean age in years

Duration/ Follow-up time

Study design

1

Yu-Ming et al. [38]

2008

Taiwan

310

210

68.9

2006/l year

Case control

2

Shahan et al. [39]

2017

USA

457

–

36.0

2005–2015/10 years

Case control

3

Tom-Van et al. [40]

2016

Netherland

484

268

52.0

2009–2013/ 4 years

Prospective

4

SMART Study Group [41]

2015

Netherland

976

782

58.2

2001–2005/ 4 years

Prospective

5

Rafat et al. [17]

2015

Poland

371

265

66.0

2011–2015/ 4 yeas

Case control

6

Edlira et al. [42]

2014

Albania

120

52

60.2

2012–2013/ 1 year

Case control