Table 2.

Surgery-related factors and risk for vasopressor agents

Variable	Vasopressor agents (n = 579)		No vasopressor agents (n = 969)		p value
		Missing		Missing
Could vasopressor agents be stopped?	322 (56%)
Epidural	209 (37%)		291 (31%)		0.010
Goal Directed Therapy	145 (26%)		160 (16%)		< 0.001
Intraoperative event*	92 (16%)		126 (13%)		0.065
Temperature 36 degrees	109 (19%)	n = 1	195 (20%)	n = 7	0.272
Glucose > 10 mmol/L	52 (9%)	n = 13	76 (8%)	n = 49	0.299
Antibiotics < 15 or > 60 min prior incision	132 (24%)	n = 17	221 (24%)	n = 38	0.482
Blood loss > 500 mL	31 (7%)	n = 35	37 (2%)	n = 42	0.003
Oxygen < 94%	13 (22%)		14 (15%)		0.173
Mean arterial pressure < 65	53 (9%)		86 (9%)		0.463
Urine production < 30 mL/h	98 (18%)		156 (17%)		0.350
OR time > 180 min	167 (29%)		288 (30%)		0.379
Hemoglobin					0.001
Men < 7 mmol/L	48 (9%)		42 (4%)		< 0.001
Woman < 6.5 mmol/L	111 (21%)		106 (12%)
Surgical approach					0.113
Open	95 (16%)		136 (14%)
Laparoscopy	451 (78%)		779 (80%)
Laparoscopy with conversion	31 (5%)		53 (5%)		0.223
Fluid administration					0.169
< 250 mL/h	89 (15%)		120 (12%)
250–1000 mL/h	453 (78%)		773 (80)
> 1000 mL/h	37 (6%)		76 (8%)
Fluid administration > 500 mL/h	236 (41%)		465 (48%)		0.003
Blood transfusion					< 0.001
1 packed cells	21 (4%)		10 (1%)
2 packed cells	3 (0.5%)		1 (0.1%)

Bold values indicate significance of p value (p < 0.005)

Data are presented as number (%) or as medians (range) for categorical and continuous variables, respectively. N is number of inclusions if due to missing data this deviates from total

A p < 0.05 was considered statistically significant

*Intraoperative events include: hypoxic events, hypertension, hypercarbia, bradycardia, hypotension, embolism, reanimation, more extensive resection than planned, serosa lesions, bladder and ureteral injuries, intraoperative bleeding, splenectomy or bleeding