Table 2.

Results of the univariate analyses of the risk factors of anastomotic leakage after colonic anastomosis.

Risk factor	Anastomotic leak (n = 50)	No anastomotic leak (n = 1805)	p value
Mean age (SD)	68.8 (14.9)	64.9 (14.4)	0.028
Male gender	n = 33	n = 876	0.021
Median ASA score (Range)	2 (1–4)	2 (1–5)	0.156
Cardiac comorbidities	n = 28	n = 810	0.322
Vascular comorbidities	n = 5	n = 174	1.000
Diabetes	n = 10	n = 153	0.022
Pulmonary comorbidities	n = 9	n = 224	0.396
Tobacco abuse	n = 7	n = 269	0.437
Obesity	n = 28	n = 938	1.000
Dementia	n = 2	n = 21	0.142
Immunosuppressive drugs	n = 7	n = 77	0.010
Nonsteroidal anti-inflammatory drugs	n = 7	n = 245	1.000
Presence of cancer	n = 16	n = 532	1.000
Presence of peritonitis	n = 5	n = 172	1.000
Large bowel obstruction	n = 3	n = 101	1.000
Liver cirrhosis or severe fibrosis	n = 3	n = 21	0.024
Mean (SD) white blood cell count (1/10E9)	8.5 (3.8)	8.2 (4.0)	0.300
Mean (SD) haemoglobin level	12.7 (2.4)	13.3 (2.0)	0.084
Mean (SD) sodium level	138.9 (4.2)	140.0 (3.1)	0.471
Mean (SD) potassium level	4.1 (0.5)	4.1 (1.1)	0.757
Mean (SD) creatinine level	88.4 (48)	79.6 (43.6)	0.131
Mean (SD) albumin level	37.6 (4.8)	40.2 (5.7)	<0.001

SD: standard deviation; ASA: American Society of Anesthesiologists.