Fig. 1.

Compliance over the three periods for the nine ventilator-associated pneumonia (VAP) preventive measures, and for global compliance. Compliance was defined for each assessable preventive measures (represented as a percentage) and global compliance is expressed as median (IQRs) for all ventilator-days assessable; SOD selective oropharyngeal decontamination. a Significant P value between the pre-intervention and intervention periods, b significant P value between the intervention and post-intervention periods, c significant P value between the pre-intervention and post-intervention periods, d significant P value between the three periods