Table 6.

Complications and Adverse Events by Risk-Group Membership

	Low n = 389	High n = 582	Test Statistic (P)
Intraoperative complications
Any	7.5 (29)	10.1 (59)	0.154
Bowel	1.0 (4)	2.7 (16)	0.064
Veins	2.3 (9)	3.1 (18)	0.469
Artery	1.3 (5)	1.4 (8)	0.906
Gastrointestinal tract	0.0 (0)	0.7 (4)	0.101
Bladder	0.8 (3)	1.5 (9)	0.284
Ureter	0.8 (3)	0.9 (5)	0.882
Other	1.3 (5)	1.7 (10)	0.592
Postoperative adverse events (grade 2 or higher)
Any	11.1 (43)	16.0 (93)	0.030
Urinary tract infection	2.3 (9)	2.2 (13)	0.935
Fever	2.6 (10)	3.1 (18)	0.634
Pelvic cellulitis	1.0 (4)	1.4 (8)	0.632
Abscess	1.0 (4)	1.2 (7)	0.801
Venous thrombophlebitis	0.8 (3)	0.9 (5)	0.882
Pulmonary embolus	0.5 (2)	1.0 (6)	0.383
Bowel obstruction	0.8 (3)	0.5 (3)	0.618
Ileus	3.1 (12)	3.6 (21)	0.659
Pneumonia	0.5 (2)	1.2 (7)	0.273
Wound infection	2.1 (8)	2.9 (17)	0.405
Urinary fistula	0.5 (2)	0.2 (1)	0.346
Bowel fistula	0.0 (0)	0.9 (5)	0.067
Congestive heart failure	0.3 (1)	0.3 (2)	0.812
Arrhythmia	1.0 (4)	1.0 (6)	0.997
Perioperative and postoperative period
Blood transfusion	1.3 (5)	3.1 (18)	0.070
Antibiotics	14.1 (55)	17.2 (100)	0.205
Readmission	4.9 (19)	5.0 (29)	0.945
Reoperation	1.0 (4)	1.9 (11)	0.286
Treatment-related deaths	0.5 (2)	0.2 (1)	0.346
Hospital stay more than 2 days	55.5 (216)	63.7 (371)	0.010

Data are percent (frequency) unless otherwise specified.