Fig. 4From: Comparative study of polymyxin B and colistin sulfate in the treatment of severe comorbid patients infected with CR-GNBThe survival curves and 95% confidence interval of polymyxin B and colistin sulfate group. 28-day mortality rate was 32.4% and 30.0% in patients with polymyxin B and colistin sulfate, respectively (log-rank, P = 0.61)Back to article page