Median age at admission was 19.5 hours (range 1 - 336 hours) and median age at surgery was 55.5 hours (range 5.5 - 368 hours) and.
Trung vị tuổi nhập viện: 19,5 giờ (1 - 336 giờ). Trung vị tuổi phẫu thuật: 55,5 giờ (5,5 - 368 giờ).