Some patients had multiple reasons for exclusion.
* Includes baseline exclusions (active malignancy [5], renal insufficiency [1], hemorrhagic pancreatitis [1], chronic immunosuppression [1], management by staged abdominal repair [2], amebic liver abscess [1], intrapelvic infection [1], and pneumonia with severe CHF/COPD), intercurrent events including acute MI (2), cardiac arrest (2), deep venous thrombosis (1), concurrent surgical condition (1), concomitant antibiotics used as protocol violation (1).