Table 4.

Clinical Outcomes.^*

Outcome	Esophageal-Pressure–Guided (N = 30)	Conventional Treatment (N = 31)	P Value
28-Day mortality — no. (%)	5 (17)	12 (39)	0.055
180-Day mortality — no. (%)	8 (27)	14 (45)	0.13
Length of ICU stay — days			0.16
Median	15.5	13.0
Interquartile range	10.8–28.5	7.0–22.0
No. of ICU-free days at 28 days			0.96
Median	5.0	4.0
Interquartile range	0.0–14.0	0.0–16.0
No. of ventilator-free days at 28 days			0.50
Median	11.5	7.0
Interquartile range	0.0–20.3	0.0–17.0
No. of days of ventilation among survivors			0.71
Median	12.0	16.0
Interquartile range	7.0–27.5	7.0–20.0

^*For patients who were deceased at day 28, a value of 0 days was assigned. ICU denotes intensive care unit.