Table 5 Association between SII and risk of 90-days all-cause mortality.

From: High level of systemic immune inflammation index elevates delirium risk among patients in intensive care unit

Variates

Univariable COX regression

Multivariable COX regression

HR (95% CI)

p

HR (95% CI)

p

SII >  = 1406.07

1.39(1.22,1.58)

 < 0.001

1.29(1.08,1.54)

0.004

Age grade

1.02(0.90,1.15)

0.756

  

Gender

0.90(0.79,1.02)

0.092

  

Heart rate

1.01(1.01,1.02)

 < 0.001

1.01(1.00,1.01)

0.049

Respiratory rate

1.06(1.04,1.08)

 < 0.001

1.02(1.00,1.04)

0.083

SBP

0.99(0.99,1.00)

0.001

1.00(1.00,1.01)

0.615

DBP

1.00(0.99,1.00)

0.144

  

Temperature

0.93(0.80,1.08)

0.346

  

SpO2

0.95(0.92,0.98)

0.001

0.98(0.95,1.02)

0.405

Glucose

1.00(1.00,1.00)

0.063

  

Hemoglobin

1.01(0.98,1.04)

0.737

  

Creatinine

0.99(0.95,1.02)

0.431

  

Albumin

0.97(0.96,0.98)

 < 0.001

1.00(0.98,1.01)

0.564

Bicarbonate

0.97(0.96,0.98)

 < 0.001

1.00(0.98,1.02)

0.776

Calcium

0.90(0.84,0.97)

0.008

1.04(0.93,1.16)

0.522

Chloride

0.99(0.98,1.00)

0.058

1(0.99,1.01)

0.745

Potassium

0.96(0.87,1.06)

0.432

  

PT

1.01(1.01,1.01)

 < 0.001

1.00(1.00,1.01)

0.171

PTT

1.01(1.00,1.01)

 < 0.001

1.00(1.00,1.00)

0.114

ALT

1.00(1.00,1.00)

0.297

  

AST

1.00(1.00,1.00)

0.001

1.00(1.00,1.00)

0.734

Bilirubin

1.03(1.02,1.05)

 < 0.001

1.01(0.99,1.02)

0.377

DM

0.83(0.72,0.95)

0.007

0.83(0.69,1.01)

0.065

CKD

0.87(0.75,1.00)

0.044

0.69(0.56,0.86)

0.001

COPD

0.95(0.80,1.12)

0.526

  

SOFA

1.10(1.08,1.11)

 < 0.001

1.07(1.05,1.10)

 < 0.001

CCI

1.05(1.02,1.07)

 < 0.001

1.08(1.04,1.12)

 < 0.001

  1. SII systemic immune-inflammation index, HR hazard ratio, SBP systolic blood pressure, DBP diastolic blood, SpO2 saturation of the pulse oxygen, PT prothrombin time, PTT partial thromboplastin time, ALT alanine aminotransferase, AST aspartate aminotransferase, DM diabetes mellitus, CKD chronic kidney disease, COPD chronic obstructive pulmonary disease; pressure, SOFA sequential organ failure assessment, CCI Charlson comorbidity index.