Table 5.

Multivariate Lasso Regression Analysis to Identify Clinical Features Associated with Increased Risk for Any Postoperative Complication in Our Institutional Patient Population

Clinical feature*	Beta coefficient
ASA classification (ordinal)	1.032
Emergency operation	0.562
Disseminated cancer	0.502
Functional health status (ordinal)	0.430
Congestive heart failure	0.397
Preoperative immunosuppressive therapy	0.321
Active smoker	0.245
History of severe COPD	0.242
Acute renal failure	0.062
Preoperative malnourishment	0.006
Age (continuous)	0.003
Hypertension	Excluded
Sex	Excluded
BMI (continuous)	Excluded
Diabetes (ordinal)	Excluded
Dialysis dependence	Excluded

^*Features are dichotomous unless otherwise specified

ASA, American Society of Anesthesiologists