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Table 5 Risk of bias of the included randomized controlled trials

From: The prevention of gestational diabetes mellitus (The role of lifestyle): a meta-analysis

Study

Year

Selection

Performance

Attrition

Reporting

Other

Assaf-Balut et al. [17]

2017

Low

High

Low

Low

Low

H Al Wattar et al. [18]

2019

Low

High

Low

Low

Low

Sahariah et al. [19]

2016

Unclear

High

Low

Low

Low

Barakat et al. [20]

2019

Low

Low

low

High

Unclear

Cordero al. [21]

2015

High

Unclear

High

Low

Unclear

da Silve et al. [22]

2017

low

Unclear

Low

Low

Low

Daly et al. [23]

2017

Low

Unclear

High

Low

Low

Callaway et al. [24]

2010

Low

Unclear

High

Low

Low

Nobles et al. [25]

2015

High

Low

Unclear

Low

Low

Oostdam et al. [26]

2012

High

High

Low

High

Low

Ruiz et al. [27]

2013

Low

Unclear

Nuclear

High

Unclear

Seneviratne et al. [28]

2016

Unclear

Low

Low

Low

Low

Simmons et al. [29]

2017

Low

High

Low

Low

Low

Stafne et al. [30]

2012

Low

Low

Low

High

Unclear

Tomić et al. [31]

2013

High

Unclear

High

Unclear

Unclear

Wang et al. [32]

2017

Unclear

High

Low

High

Low