Table 4.

Cox proportional hazards analysis of time to death in patients with FFP/RBC use (n = 189)

	Model	Hazard ratio	P value
FFP/RBC ≥1 within 6 h	Unadjusted	0.44 (0.25–0.74)	0.002*
Within 6 h	Multivariable adjusted**	0.29 (0.14–0.62)	0.001*
Within 24 h	Unadjusted	0.62 (0.36–1.00)	0.051
Within 24 h	Multivariable adjusted**	1.27 (0.59–2.74)	0.540
**All variables in Table 2 were selected.
Cox proportional hazards analysis of FFP/RBC ratio ≥1 within 6 h and mortality among patients matched by propensity score and among patients adjusted by inverse probability of treatment weighting with propensity scores

	Model	Hazard ratio	P value
FFP/RBC ratio ≥1 within 6 h (n = 106)*	Adjusted by propensity Score matching	0.38 (0.17–0.86)	0.020
within 6 h (n = 189)†	Adjusted by IPTW	0.41 (0.24–0.70)	0.001

^*106 is the number of patients matched by propensity score; the number of patients with FFP/RBC ratio ≥1 within 6 h included 53 patients, and those with an FFP/RBC ratio <1 included 53 patients.

^†195 is the number of study patients without missing values.

IPTW indicates inverse probability of treatment weighting.