Prognostic value of red blood cell distribution width for severe acute pancreatitis

Table 4 Parameters of receiver operating characteristic curves

Parameter	AUC	SD	P-value	95% confidence interval
				Lower limit	Upper limit
RDW-CV	0.797	0.069	0.001b	0.662	0.933
RDW-SD	0.811	0.071	0.001d	0.673	0.950
APACHE II	0.677	0.089	0.052	0.504	0.851
SOFA	0.785	0.071	0.002f	0.646	0.924

RDW-CV: Coefficient of variation of red blood cell distribution width; RDW-SD: Standard deviation of red blood cell distribution width; APACHE II: Acute Physiology and Chronic Health Evaluation II score; SOFA: Sequential Organ Failure Assessment score; AUC: Area under the curve.

^bP < 0.05,

^dP < 0.01,

^fP < 0.05.