Role of coatings and materials of external fixation pins on the rates of pin tract infection: A systematic review and meta-analysis

Table 1 Cochrane risk of bias tool - clinical trials

Study	Random sequence generation	Allocation concealment	Blinding of patients, personnel	Blinding of outcome assessor	Incomplete outcome data	Selective outcome reporting	Other
Coester, 2006	Low	Low	Unclear	Low	Low	Low	Low
Masse, 2000	Low	Unclear	Unclear	Unclear	Low	Low	Low
Morone, 2001	Low	Low	Unclear	Unclear	Low	Low	Low
Pieske, 2010	Low	Low	Low	Low	Low	Low	Low
Pieske, 2011	Low	Low	Low	Low	Low	Low	Low
Pizà, 2004	Low	Low	Unclear	Unclear	Low	Low	Low
Pommer, 2002	Low	Low	Unclear	Low	Low	Low	Low