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Table 2 Bias assessment of included trials[9]

From: Efficacy of Ambroxol lozenges for pharyngitis: a meta-analysis

Reference Adequate sequence generation Allocation concealment Blinding of participants and personnel Blinding of outcome assessment Incomplete outcome data adressed Free of selective reporting Free of other bias
de Mey et al. [15] Yes Unclear Yes Unclear Yes Unclear No
Schutz et al. [14] Yes Unclear Yes Unclear Yes Unclear No
Fischer et al. [16] Yes Unclear Yes Unclear Yes Unclear No
Fischer et al. [16] Yes Unclear Yes Unclear Yes Unclear No
de Mey et al. [15] Yes Unclear Yes Unclear Yes No No