Table 3.

Risk factors for 30-day postoperative mortality following emergency high-risk abdominal surgery. Multivariable logistic regression analysis

	OR	95% CI	p value
Age	1.0	(1.01, 1.05)	0.0001
ASA 1	1 REF
ASA 2	1.7	(0.4, 7.7)	0.47
ASA 3	5.6	(1.3, 24.7)	002
ASA 4–5	17.0	(3.8, 79.0)	0.001
Sepsis score 0–2	1 REF
Sepsis score > 2	2.6	(1.4, 4.7)	0.002
Albumin low (< 34 g/L)	1 REF
Albumin normal (36–48 g/L)	0.5	(0.3, 0.7)	0.0005
Albumin high (> 48 g/L)	0.1	(0.01,0.9)	0.03
ECOG 0	1 REF
ECOG 1	1.7	(1.0, 2.9)	0.04
ECOG 2	3.2	(1.78, 5.8)	< 0.0001
ECOG 3	3.9	(1.8, 7.9)	< 0.0001
ECOG 4	5.9	(1.8, 19.0)	0.003
Cardiovascular comorbidity	0.9	(0.6, 1.4)	0.76
Indication for surgery (obstruction vs other)	0.7	(0.6, 1.4)	0.14

OR odds ratio, CI confidence interval, ASA American Society of Anesthesiologists. Cardiovascular comorbidity: hypertension, atrial fibrillation, heart failure, previous percutaneous coronary intervention, cardiac surgery, or angina. ECOG Eastern Cooperative oncology Group Performance Status Score