Pre and postoperative lactate levels and lactate clearance in predicting in-hospital mortality after surgery for gastrointestinal perforation

Table 2 Preoperative factors

Characteristics	Survive to discharge (N = 87)	In-hospital mortality (N = 17)	P-value
WBC count (n/μL)	10,409 ± 9795	9305 ± 6439	0.657
Hemoglobin (g/dL)	11.8 ± 2.4	10.4 ± 1.6	0.018
Albumin (g/dL)	3.0 ± 0.7	2.5 ± 0.7	0.017
C-reactive protein (mg/dL)	16.9 ± 13.7	14.3 ± 12.6	0.611*
Lactate level (mmol/L)	3.5 ± 3.2	6.3 ± 5.1	0.013*
SOFA score	3.7 ± 2.3	4.5 ± 1.7	0.004*
Mechanical ventilation	6 (6.9)	1 (5.9)	1.000**
Worst MAP (mmHg)	71.6 ± 15.3	67.6 ± 14.7	0.320
Vasopressor use	25 (28.7)	8 (47.1)	0.138
Time to surgery (h)	9.0 ± 5.6	6.6 ± 4.2	0.073*

Data are presented as mean ± SD, or number (%)
WBC white blood cell; SOFA sequential organ failure assessment; MAP mean arterial pressure
*Mann–Whitney’s U-test
**Fisher’s exact test

ISSN: 1471-2482