Preoperative blood glucose Postoperative blood glucose Postoperative ED presentation 0.067 0.041 Any postoperative complication 0.413 0.053 Postoperative change inKPS score 0.766 0.852 Duration of hospital stay 0.989 0.862 Duration of ICU stay 0.392 0.425

Table 5: Prognostic significance of preoperative and postoperative hyperglycemia amongst diabetics after meningioma resection. Shown below are p values representing the association of blood glucose levels before and after the operation with postoperative complications, changes in performance status, hospitalization duration, and postoperative ED presentation. Postoperative hyperglycemia amongst diabetics is associated with an increased risk of subsequent presentation to the ED.