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Table 2 Summary of the risk of bias (ROB) for non-randomized clinical studies comparing different methods for targeted temperature management (TTM) in adult cardiac arrest patients. LOW ROB = 0; HIGH ROB = 1

From: Effect of different methods of cooling for targeted temperature management on outcome after cardiac arrest: a systematic review and meta-analysis

Author, year [ref]

Selection of cases

Comparability of cohorts

Exposure and outcome

Overall ROB

Glover, 2016 [14]

1

1

1

High

Oh, 2015 [15]

1

1

0

High

De Waard, 2015 [23]

1

0

0

High

Tomte, 2011 [17]

1

0

1

High

Flint, 2007 [31]

1

0

0

High

Sonder, 2018 [16]

1

0

0

High

Gillies, 2010 [32]

1

0

0

High

Ferreira, 2009 [28]

1

0

0

High

Flemming, 2006 [30]

1

0

0

High

Rosman, 2016 [25]

1

1

0

High

Caulfield, 2011 [27]

1

0

0

High

De Fazio, 2019 [19]

1

0

0

High

Feuchtl, 2007 [29]

1

1

0

High

Shinada, 2014 [34]

1

1

1

High

Rana, 2011 [35]

1

1

0

High

De Waard, 2013 [36]

1

0

0

High

Kim, 2018 [26]

1

0

1

High

Forkmann, 2015 [37]

1

1

1

High