Figure 4From: A randomized trial of chlorhexidine gluconate on oral bacterial pathogens in mechanically ventilated patientsEffect of topical chlorhexidine gluconate on the number of Staphylococcus aureus in oral samples. Mean in log scale with 95% confidence intervals. The confidence intervals were obtained based on data at each time point. Triangle = placebo; Square = chlorhexidine gluconate (CHX) once a day; Circle = CHX twice a day.Back to article page