Intervention1: NA: NA Control Intervention1: NA: NA Primary outcome(s): Postoperative complications as per Clavien Dindo class of complicationsTimepoint: From day of surgery to 30 days postoperatively
Preoperative anemia affects 30–40% of patients undergoing major surgery and is an independent risk factor for perioperative blood transfusion, morbidity, and mortality. Absolute or functional iron def
