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Table 1 Summary risk of bias of studies (ROBs-2)

From: Efficacy and safety of azithromycin and amoxicillin/clavulanate for otitis media in children: a systematic review and meta-analysis of randomized controlled trials

S no. Author (year) Bias due to deviations from intended interventions Bias from missing outcome data Bias in the measurement of the outcome Bias in selection of the reported results The overall risk of bias
01 Daniel (1993) Some concern Lower risk Lower risk Lower risk Some concerns
02 Schaad (1993) Some concern Lower risk Lower risk Lower risk Some concerns
03 Principi (1995) Some concern Lower risk Lower risk Lower risk Some concerns
04 Arguedasa et al (1996) Lower risk Lower risk Lower risk Lower risk Low risk
05 Gerson (1996) Some concern Lower risk Lower risk Lower risk Some concerns
06 Mohini (1996) Some concern Lower risk Lower risk Lower risk Some concerns
07 Samuel (1996) Lower risk Lower risk Lower risk Lower risk Low risk
08 Dagan (2000) Lower risk Lower risk Lower risk Lower risk Low risk
09 Arrieta et al. (2003) Lower risk Lower risk Lower risk Lower risk Low risk
10 Block et al. (2003) Lower risk Lower risk Lower risk Lower risk Low risk
11 Dune et al. (2003) Lower risk Lower risk Lower risk Lower risk Low risk
12 Hoberman et al. (2005) Lower risk Lower risk Lower risk Lower risk Low risk
13 Guven et al. (2006) Some concern Lower risk Lower risk Lower risk Some concerns
14 Arguedas et al. (2011) Lower risk Lower risk Lower risk Lower risk Low risk