Common indications for PICU admission included hypoxia (50), hemodynamic instability (20), diabetic ketoacidosis (6. 0), S. Aim This study was conducted to calculate the incidence of hypomagnesaemia at PICU admission and to relate it to length of PICU stay, duration of mechanical ventilation, and outcome of hospital stay or discharge. S1 -Main reasons for admission to the ICU Total number of patients 1764 Surgical reason for admission 529 Scheduled post -operative surveillance 104 Please find analyses from the Case Mix Programme database focussed on ' Reason for admission ' under Related files.