Table 2.

Correlations between procalcitonin values and duration of ECMO support, mechanical ventilation, PICU admission, or hospital admission for each group.

	Group 1
	PCT P0		PCT P1		PCT P2		PCT P3
	r	P	r	P	r	P	r	P
ECMO support, d	−.435	.18	−.618	.057	−.710	.022	−.741	.009
PICU LOS, d	−.610	.046	.000	NS	−.280	NS	−.296	NS
MV in days, d	−.534	NS	−.468	.172	−.518	NS	−.530	NS
Hospital LOS, d	−.191	NS	.733	.016	.188	NS	.282	NS
	Group 2
	PCT P0		PCT P1		PCT P2		PCT P3
	r	P	r	P	r	P	r	P
ECMO support, d	.007	NS	.087	NS	.009	NS	.033	NS
PICU LOS, d	.044	NS	.541	.046	.626	.017	.671	.012
MV, d	.208	NS	.303	NS	.25	NS	.254	NS
Hospital LOS, d	−.143	NS	.572	.033	.648	.012	.742	.004

Abbreviations: ECMO, extracorporeal membrane oxygenation; LOS, length of stay; MV, mechanical ventilation; NS, nonsignificant; PCT, procalcitonin (ng/mL); PICU, pediatric intensive care unit.

For this analysis, patients who died were excluded. Spearman correlation was performed. Values are expressed as r correlation and P value for each time.