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

Table 2 Univariable logistic regression analyses to identify factors associated with reoperation as a treatment for postoperative anastomotic leak (n = 652)

Variable		Univariable logistic regression model		P-value
	NWAD	uOR	95%CI
Bowel Prep groups
MBP vs MBP + OAB1	652 (100)	1.14	0.77-1.70	0.51
Nothing vs MBP1		1.23	0.86-1.76	0.25
Nothing vs MBP + OAB1		1.41	0.94-2.11	0.10
Age < 65 vs ≥ 65 yr1	649 (99.5)	0.82	0.60-1.12	0.21
BMI ≥ 30 vs < 301	650 (99.7)	1.44	1.03-2.00	0.03
Female vs male	652 (100)	1.35	0.99-1.85	0.06
Non-White vs White	652 (100)	1.08	0.76-1.53	0.69
No DM vs DM1	652 (100)	0.85	0.55-1.31	0.46
No steroid vs steroids1	652 (100)	0.89	0.54-1.49	0.67
Hct (%) < 38 vs ≥ 381	622 (95.4)	0.93	0.67-1.29	0.68
WBC (K/cumm) ≤ 12 vs > 121	615 (94.3)	1.53	0.74-3.16	0.26
PLT (K/cumm) < 150 vs ≥ 1501	613 (94)	1.58	0.75-3.37	0.23
Albumin (g/dL) < 3.5 vs ≥ 3.51	409 (62.7)	1.13	0.70-1.83	0.62
BUN (mg/dL) > 20 vs ≤ 201	575 (88.2)	1.17	0.73-1.88	0.53

NWAD: Number (%) of patients with available data; uOR: Unadjusted odds ratio; MBP: Mechanical bowel preparation; OAB: Oral antibiotics; BMI: Body mass index; DM: Diabetes mellitus; Hct: Hematocrit; WBC: White blood cells; PLT: Platelets; BUN: Blood urea nitrogen; OR: Odds ratios.

¹Preoperative.