Table 2.

Risk of bias assessment judgements for genetic case-control association studies with fracture risk in physically active participants.

References	Selection bias	Bias due to confounding	Bias in classification of exposure	Bias in assessment of outcome	Bias due to missing data	Bias in selection of reported results	Overall risk of bias
Blades et al. (2010)	Moderate	Serious	Moderate	Moderate	Low	Moderate	Serious
Chatzipapas et al. (2009)	Serious	Serious	Serious	Serious	Low	Moderate	Serious
Cosman et al. (2013)	Moderate	Moderate	Low	Low	Low	Moderate	Moderate
Korvala et al. (2010)	Serious	Serious	Serious	Serious	Moderate	Moderate	Serious
Suuriniemi et al. (2003)	Moderate	Moderate	Moderate	Moderate	Low	Moderate	Moderate
Välimäki et al. (2005)	Moderate	Moderate	Moderate	Moderate	Low	Moderate	Moderate
Varley et al. (2015)	Serious	Moderate	Low	Moderate	Low	Serious	Serious
Varley et al. (2016)	Serious	Serious	Serious	Moderate	Serious	Serious	Serious
Varley et al. (2018)	Serious	Serious	Serious	Moderate	Low	Serious	Serious
Yanovich et al. (2012)	Serious	Serious	Serious	Low	Serious	Critical	Critical
Zhao et al. (2016)	Moderate	Moderate	Low	Low	Low	Low	Moderate