Skip to main content

Table 3 Assessment of risk of bias in individual studies

From: Meta-analysis of ART outcomes in women with different preconception TSH levels

Study Selection bias Performance bias Detection bias Attrition bias Reporting bias Other bias
Sampling bias Measurement bias
Coelho 2016 + ?
Aghahosseini 2013 ? +
Mintziori 2014 + + +
Unuane 2017 + + +
Michalakis 2011 + ? + ? +
Muller 1999 + + ?
Chai 2014 + + +
Weghofer 2015 ? + + ? +
Baker 2006 ? + +
Karmon 2014 ? +
Cai 2017 ? ? +
Seungdamrong 2017 + +
Zhang 2012 + + +
Ba 2013 + ?
Reh 2010 + + + ? +
Zeng 2014 ? + ?
Gingold 2016 ? + +
Wu 2017 ? + +
  1. + high risk of bias; − low risk of bias;? unclear risk of bias