Setting The data that will be used is from a prospective cohort study named towards improved trauma care outcomes in India (TITCO). It was collected from four public university hospitals in India between October 2013 and January 2015. The hospitals are in Mumbai, Delhi and Kolkata. The two centers in Mumbai were King Edward Memorial Hospital and Lokmanya Tilak Municipal General Hospital. The one in Delhi was Jai Prakash Narayan Apex Trauma Center and the one in Kolkata was the Institute of Post-Graduate Medical Education and Research and Seth Sukhlal Karnani Memorial Hospital.