Comparison of mortality prediction models in acute respiratory distress syndrome undergoing extracorporeal membrane oxygenation and development of a novel prediction score: the PREdiction of Survival on ECMO Therapy-Score (PRESET-Score)

Table 3 Results of multivariate analysis

Variable	Wald statistic	p value	HR	95% CI
pH_a (×10)	3.92	0.048	0.64	0.42–0.99
Hospital stay pre ECMO (days)	7.48	0.006	1.18	1.05–1.34
Lactate concentration (mmol l^–1)	7.66	0.006	1.38	1.10–1.74
Mean arterial pressure (mmHg 10^–1)	9.10	0.003	0.53	0.35–0.80
Platelet concentration (100,000 μl^–1)	7.33	0.007	0.56	0.37–0.85

HR hazard ratio, CI confidence interval, ECMO extracorporeal membrane oxygenation

ISSN: 1364-8535