Perioperative changes in haemoglobin and ferritin concentrations from preoperative intravenous iron isomaltoside for iron deficiency anaemia in patients with colorectal cancer: A pilot randomised controlled trial

Data was for collected as part of prehabilitation service expansion. Variables include patient demographics, comorbidities, diagnosis, tumour characteristics, type of operation, haematological laboratory measurements at baseline, before surgery, postoperative Day 1 and at hospital discharge, blood loss, transfusion, surgical complications, quality of recovery score, postoperative length of stay and days alive and at home with 30 days after surgery and readmission to hospital.