Figure 3
Tidal volumes and PEEP; Median exhaled tidal volumes were grouped into categories of < 8 mL per kg of predicted body weight (PBW), 8–10 mL per kg of PBW and > 10 mL per kg of PBW. Median positive end-expiratory pressure (PEEP) values were grouped into categories of no PEEP, 1–4 cm H2O, 5–10 cm H2O and > 10 cm H2O. Counts of cases with tidal volumes and PEEP usage are displayed above for each year analyzed.