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Table 2 The methodological quality of the included studies

From: The effect of exercise on the prevention of gestational diabetes in obese and overweight pregnant women: a systematic review and meta-analysis

Author, year Random sequence generation (selection bias) Allocation concealment (selection bias) Blinding of participants and personnel (performance bias) Blinding of outcome assessment (detection bias) Incomplete outcome data (attrition bias) Selective reporting (reporting bias) Other bias
Callway et al. 2010 + +
Oostdam et al. 2012 + + +
Barakat et al. 2013 + + +
Seneviratne et al. 2015 +
Simmons et al. 2018 +
Wang et al. 2017 ? + +
Krohn Garnæs1 et al. 2018 ? + +
Daly et al. 2018 + +