Efficacy, effectiveness and safety of vaccination against human papillomavirus in males: a systematic review

Table 3 Risk of bias in randomized controlled trials

Study	Random sequence generation	Allocation concealment	Blinding of participants and personnel	Blinding of outcome assessment	Incomplete outcome data	Selective reporting	Other bias
Giuliano et al. 2011 [32]	+	+	+	+	+	+	+
Palefsky et al. 2011 [33]	+	+	+	+	+	+	+
Coskuner et al. 2014 [31]^a	+	+	–	–	+	+	+
NCT01461096 [26]	+	+	+	+	+	+	+

ISSN: 1741-7015