Fig. 2. Kaplan–Meier survival analysis of rats (all with a cefuroxime–metronidazole antibiotic prophylaxis) in trial 2 for 120 h, comparing mild postoperative hypothermia (32°C) alone versus mild postoperative hypothermia (32°C) plus G-CSF prophylaxis versus postoperative normothermia (38°C). Contamination and infection was performed with 1.9 ml/kg standardized human stool (n = 20 per group, P < 0.05, mild hypothermia compared with mild hypothermia plus G-CSF, P < 0.05).