The mean (±SD) age was 49±16 years (16.5% of the patients were >65 years of age), 40.0% of the patients were women, 63.5% were white, 7.9% were black, 6.3% were Hispanic, and 19.3% were Asian. We analyzed deidentified data from the Surgical
Outcomes Collaborative (Surgisphere), an international registry. Our analysis included data from 169 hospitals located in 11 countries in Asia, Europe, and North America.