Fig. 4From: Violence against healthcare professionals in intensive care units: a systematic review and meta-analysis of frequency, risk factors, interventions, and preventive measuresMeta-analysis of frequencies of (A) physical violence, (B) verbal violence, and (C) sexual violence in the included studies. *Further details are presented in Additional file 1: Fig. S1; **further details are presented in Additional file 1: Fig. S2; ***further details are presented in Additional file 1: Fig. S3Back to article page