Effect of Serum Ferritin on the Prognosis of Patients with Sepsis: Data from the MIMIC-IV Database

Table 1

Comparisons of information between survivors and nonsurvivors.

	Survivals (n = 1,946)	Nonsurvivals (n = 505)	value
Age (years)	62.32 ± 17.47	65.78 ± 16.43	<0.001
Male (%)	1,039 (53.39)	279 (55.25)	0.456
Emergency admissions (%)	1,641 (84.33)	438 (86.73)	0.179
CHD (%)	400 (20.55)	107 (21.19)	0.754
Hypertension (%)	659 (33.86)	166 (32.87)	0.674
HF (%)	604 (31.04)	168 (33.27)	0.337
Diabetes (%)	562 (28.88)	144 (28.51)	0.872
CKD (%)	447 (22.97)	125 (24.75)	0.399
Anemia (%)	1,314 (67.52)	293 (58.02)	<0.001
HR (bpm)	91.08 ± 20.68	92.91 ± 20.49	0.076
RR (cpm)	20.45 ± 5.98	21.78 ± 6.47	<0.001
MBP (mmHg)	75.48 ± 15.47	73.13 ± 17.77	0.002
SpO2 (%)	98 (95, 100)	97 (95, 100)	0.026
Temperature (°C)	36.96 ± 0.83	36.77 ± 0.88	<0.001
WBC (10^9/L)	10.8 (7.2, 15.2)	12.4 (7.9, 17.9)	<0.001
Hemoglobin (g/dL)	9.73 ± 1.98	9.60 ± 2.04	0.215
Creatinine (mmol/L)	1.1 (0.7, 2.0)	1.5 (1.0, 2.5)	<0.001
Lactates (mmol/L)	1.5 (1.2, 2.0)	2.2 (1.5, 3.0)	<0.001
SOFA score	3 (2, 5)	4 (3, 6)	<0.001
AKI (%)	1,443 (74.15)	456 (90.30)	<0.001
Vasopressor use (%)	646 (33.20)	279 (55.25)	<0.001
Culture positive (%)	639 (32.84)	191 (37.82)	0.035
Respiratory system (%)	261 (13.41)	92 (18.22)	0.006
Urine system (%)	244 (38.18)	57 (29.84)	0.035
Blood system (%)	109 (5.60)	59 (11.68)	<0.001
Other system (%)	189 (9.71)	44 (8.74)	0.495
Iron metabolism
Serum iron (μg/dL)	36 (20, 63)	53 (26, 85)	<0.001
Transferrin (mg/dL)	153 (122, 187)	128 (98, 162)	<0.001
TIBC (μg/dL)	199 (159, 243)	168 (128, 209)	<0.001
Ferritin (ng/mL)	430 (181, 1031)	892 (352, 2281)	<0.001

CHD: coronary heart disease; HF: heart failure; CKDs: chronic kidney diseases; HR: heart rate; RR: respiratory rate; MBP: mean blood pressure; WBC: white blood cell; SOFA score: the sequential organ failure assessment; ICU: intensive care unit; LOS: length of stay; AKI: acute kidney injury.