borderline significancep = 0.06
Interestingly, secondary analysis of data from a study of van Grootven and colleagues [ 47 ] revealed that among 86 patients aged 80 ± 7 years undergoing orthopedic surgery, the lowest intraoperative diastolic BP was the protective factor for POD (OR = 0.92; 95%CI 0.85–0.99, p = 0.03) and the protective impact of the highest systolic BP was of a borderline significance (OR = 0.97; 95%CI 0.94–1.0; p = 0.06).