Table 2.

Methodological assessment of articles included in a meta-analysis comparing intramedullary fixation (IF) with plate fixation (PF) for midshaft clavicle fracture using the Cochrane collaboration tool for assessing risk of bias.

Reference	Random sequence generation	Allocation concealment	Blinding	Incomplete outcome data	Free of selective reporting	Free of other bias
Narsaria, 201424	Yes	Yes	Unclear	Yes	Yes	Yes
Liu, 201035	No	Unclear	Yes	Yes	Yes	Unclear
Fu, 201225	No	Unclear	Yes	Yes	Yes	Unclear
Ko, 199936	Yes	Unclear	Unclear	Yes	Yes	No
Lee J, 201426	Unclear	Yes	Unclear	Yes	Yes	Yes
Wenninger, 201327	Yes	Unclear	Yes	Yes	Yes	Unclear
Assobhi, 201134	No	Yes	Yes	Unclear	Yes	No
Wijdicks, 201228	Yes	Yes	Yes	Yes	Yes	No
Ferran, 201043	No	Unclear	Unclear	Yes	Yes	Yes
Kleweno, 201139	Yes	Yes	Yes	Yes	Yes	No
Chen, 201215	No	Unclear	Yes	Yes	Yes	No
Lee Y, 200818	Yes	Yes	Unclear	Unclear	Yes	Yes

^‘Yes’, low risk of bias; ‘Unclear’, unclear risk of bias; ‘No’, high risk of bias.