Table 3.

EVLWi and PVPI in patients with ARDS based on the Berlin definition during a three-day observation period.

	mild ARDS (n = 152)	moderate ARDS (n = 230)	severe ARDS (n = 113)
EVLWi, mL/kg	14.7 (11.5-18.1)	16.2 (12.6-20.9)**	20.0 (15.5-27.3)*#
PVPI	2.6 (2.0-3.1)	2.7 (2.2-3.5)**	3.5 (2.6-4.7)*#

*P <0.01 vs. mild ARDS; **P <0.05 vs. mild ARDS; #P <0.01 vs. moderate ARDS. ARDS, acute respiratory distress syndrome; EVLWi, extravascular lung water index; PVPI, pulmonary vascular permeability index.