ANOVA analyses of plasma profiles among the pre-ARDS, ARDS and the Controla

ARDS, acute respiratory distress syndrome; PI3, neutrophil elastase inhibitor (elafin); SLPI, secretory leukocyte proteinase inhibitor; HNE, neutrophil elastase; 95%CI, 95% confidence interval.a. ANOVA analysis plasma profiles using general linear model with adjustment of covariates, including age, gender, type of lung injury, pre-admission steroid use, septic shock, and APACHE III score on ICU admission. Pairwise comparison: ++, PPP��0.05; NA, not applicable.b. P values of general linear model for all groups.c. The unit of HNE/PI3 is fold change.