Figure 5

Mean difference in bias between each PEEP level from 2 to 20 and PEEP 0 cm H 2 O. Closed circles are mean differences and bars are 95% confidence intervals.
Mean difference in bias between each PEEP level from 2 to 20 and PEEP 0 cm H 2 O. Closed circles are mean differences and bars are 95% confidence intervals.