Fig. 3From: Systemic immune-inflammation index predicts postoperative delirium in elderly patients after surgery: a retrospective cohort studySubgroup analyses of the association between SII and perioperative ischemic stroke. SII, systemic-immune-inflammation; POD, postoperative delirium; OR, odds ratio; CI, Confidence interval; ASA, American Society of Anesthesiologists classification; Hb, hemoglobin; WBC, white blood cell count; MAP, mean arterial pressureBack to article page