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. 2017 Dec 12;21:301. doi: 10.1186/s13054-017-1888-6

Table 3.

Results of multivariate analysis

Variable Wald statistic p value HR 95% CI
pHa (×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