Table 5.

Results of multivariate analysis among three subgroups.

Variables	P-value	Odds ratio	95% CI
Factors independently associated with hospital mortality
PCIS	0.004	0.832	0.734–0.943
Fluid balance in the first 3 days (ml/kg/d)	0.025	1.092	1.011–1.180
Factors independently associated with etiology of ARDS
PCT	0.026	1.073	1.009–1.141
Factors independently associated with counts of granulocyte
CRP	0.005	1.022	1.007–1.037
PIP	0.012	0.785	0.650–0.949

PCIS, pediatric critical illness score.