[1]Department of Anaesthesiology and Critical Care Tata Main Hospital Jamshedpur 831001 India;
[2]Department of Anaesthesiology and Critical Care Darya Ram Hospital Sonipat 131001 India;
[3]Department of Biomedical Statistics Sir Ganga Ram Hospital New Delhi 110060 India;
Laparotomy; Emergencies; Acute physiology and chronic health evaluation II; Morbidity; Mortality;