Outcome of patients with acute, necrotizing pancreatitis requiring drainage-does drainage size matter?

Table 2 Cox proportional hazard model for overall mortality using uni- and multivariate analysis

Variable	Mono-HR	P	Multi-HR	P
Age	0.985	0.098	-
Sex	0.926	0.793	-
CTSI	0.933	0.281	0.982	0.819
Apache II Score	0.961	0.016	0.989	0.716
SAPS II Score	0.976	0.002	1.004	0.809
Clinical treatment modalities
Invasive ventilation	0.175	0.000	5.618	0.001
Renal replacement therapy	0.329	0.005	2.347	0.046
Interventional treatment modalities
Number of drainages	0.892	0.077	-
Median drainage size	0.989	0.830	-
Largest drainage size	0.954	0.307	-
Total drainage plane	0.994	0.052	0.993	0.084

Mono-HR: Monovariate hazard ratio; Multi-HR: Multivariate hazard ratio; APACHE: Acute Physiology and Chronic Health Evaluation; SAPS: Simplified Acute Physiology Scale; CTSI: Computed Tomography Severity Index.