Preoperative bowel preparation does not favor the management of colorectal anastomotic leak

Table 3 Baseline characteristics of patients undergoing elective colorectal resection, categorized based on anastomosis leak management

	Anastomosis leak treatment groups
	Non-surgical (n = 300)	Reoperation (n = 352)	Total (n = 652)	P-value
Age
NWAD (%)	300 (100)	349 (99.1)	649 (99.5)	0.891
mean ± SD	59.38 ± 15.1	59.57 ± 14.31	59.48 ± 14.67
Median (range) Q1/Q3	61 (19-88) 50/71	60 (21-89) 51/70	61 (19-89) 50/71
Height (inches)
NWAD (%)	298 (99.3)	352 (100)	650 (99.7)	0.191
mean ± SD	66.39 ± 4.02	66.8 ± 3.68	66.61 ± 3.84
Median (range) Q1/Q3	66.5 (54-80) 64/69	67 (57-76) 64/70	67 (54-80) 64/69
Weight (lbs)
NWAD (%)	299 (99.7)	352 (100)	651 (99.8)	0.021
mean ± SD	176 ± 44.29	186 ± 51.7	182 ± 48.65
Median (range) Q1/Q3	172 (95-360) 144/201	179 (83-469) 149/217	175 (83-469) 145/208
BMI
NWAD (%)	298 (99.3)	352 (100)	650 (99.7)	0.131
mean ± SD	27.99 ± 5.79	29.34 ± 7.89	28.72 ± 7.04
Median (range) Q1/Q3	27.12 (17.1-48.8) 23.9/31.3	28.1 (13.4-68.2) 23.9/33.3	27.75 (13-68) 23.9-32.15
Gender
Female	137 (45.7)	135 (38.4)	272 (41.7)	0.062
Male	163 (54.3)	217 (61.6)	380 (58.3)
Race
White	220 (73.3)	263 (74.7)	483 (74.1)	0.692
Non-White	80 (26.7)	89 (25.3)	169 (25.9)
DM
Yes	48 (16)	49 (13.9)	97 (14.9)	0.462
No	252 (84)	303 (86.1)	555 (85.1)
Steroids use
Yes	32 (10.7)	34 (9.7)	66 (10.1)	0.672
No	268 (89.3)	318 (90.3)	586 (89.9)
ASA Score
≤ 2	133 (44.3)	151 (42.9)	284 (43.6)	0.712
≥ 3	167 (55.7)	201 (57.1)	368 (56.4)
Weight loss >10%
Yes	13 (4.3)	22 (6.3)	35 (5.4)	0.282
No	287 (95.7)	330 (93.7)	617 (94.6)
PRTR
No	300 (100)	346 (98.3)	646 (99.1)	0.033
Yes	0 (0)	6 (1.7)	6 (0.9)

¹Mann-Whitney U test,

²χ² test,

³Fisher’s Exact test. BMI: Body mass index; DM: Diabetes mellitus; NWAD: Number (%) of patients with available data; ASA: American Society of Anesthesiologists; PRTR: Preoperative transfusion > 4 PRBCs in 72 h before surgery.