Fig. 2

Kaplan–Meier 28-day survival curve comparing patients on mechanical ventilation or with septic shock. A 28-day mortality rate was 59% and 20% in patients with mechanical ventilation and not on mechanical ventilation, respectively (log-rank, P < 0.01). B 28-day mortality rate was 65% and 16% in patients with septic shock and without septic shock, respectively (log-rank, P < 0.01)