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

Table 2 Demographic parameters between the survival and non-survival groups

Demographic parameter	Survival group	Non-survival group	P-value
Number	22	20
Age (yr)	50.50 ± 17.78	44.33 ± 13.28	0.206
Gender	Male (12): female (10)	Male (15): female (5)	0.720
BMI (kg/m2)	26.72 ± 4.61	26.59 ± 3.96	0.924
LOS-ICU (d)	7.71 ± 6.64	11.22 ± 14.40	0.347
RDW-CV (%)	13.59 ± 0.88	15.09 ± 1.63	0.002
RDW-SD (fL)	43.96 ± 3.11	49.94 ± 5.51	0.000
PDW (fL)	14.72 ± 3.35	14.95 ± 3.76	0.842
CRP (mg/L)	212.10 ± 107.04	212.19 ± 144.97	0.998
NLR	14.05 ± 10.13	9.92 ± 4.53	0.085
Serum calcium	1.64 ± 0.27	1.77 ± 0.45	0.253
APACHE II	12.42 ± 4.27	15.67 ± 5.70	0.041
SOFA	4.83 ± 2.65	7.94 ± 2.99	0.001

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; BMI: Body mass index; LOS-ICU: Length of stay in the intensive care unit; NLR: Neutrophil to lymphocyte ratio; CRP: C reactive protein; PDW: Platelet distribution width.