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Table 5 Factors associated with mortality in patients with bloodstream infections by Cox proportional hazards analysis

From: Polymicrobial bloodstream infections per se do not increase mortality compared to monomicrobial bloodstream infections in sepsis patients: a Korean nationwide sepsis cohort study

Variable

Univariate

Multivariate

HR

95%CI

P-value

HR

95%CI

P-value

Age

1.00

1.00, 1.01

0.033

   

Sex, male

1.16

1.03, 1.30

0.012

   

BMI

0.99

0.97, 1.00

0.072

   

Community-onset sepsis

0.99

0.87, 1.13

> 0.9

   

Polymicrobial bloodstream infections

1.15

0.97, 1.36

0.11

   

Cardiovascular disease

1.01

0.88, 1.15

0.9

   

Chronic lung disease

1.11

0.92, 1.33

0.3

   

Chronic neurological disease

0.81

0.70, 0.94

0.007

0.70

0.59, 0.82

< 0.001

Chronic liver disease

1.08

0.92, 1.28

0.3

   

Diabetes

0.91

0.81, 1.03

0.12

   

Chronic kidney disease

1.27

1.09, 1.49

0.002

   

Connective tissue disease

0.71

0.48, 1.07

0.10

   

Immunocompromised

1.10

0.84, 1.44

0.5

   

Hematological malignancies

1.46

1.22, 1.74

< 0.001

1.46

1.20, 1.77

< 0.001

Solid malignant tumors

1.37

1.23, 1.54

< 0.001

1.30

1.12, 1.52

< 0.001

Charlson comorbidity index

1.08

1.06, 1.11

< 0.001

1.04

1.01, 1.07

0.005

ECOG score

1.29

1.24, 1.35

< 0.001

1.08

0.99, 1.19

0.10

CFS score

1.18

1.15, 1.22

< 0.001

1.14

1.08, 1.21

< 0.001

Source of infection

 Pulmonary

1.75

1.55, 1.98

< 0.001

1.41

1.22, 1.62

< 0.001

 Abdominal

0.85

0.75, 0.96

0.010

   

 Urinary

0.51

0.44, 0.60

< 0.001

0.55

0.46, 0.65

< 0.001

 Skin and soft tissue

1.07

0.83, 1.38

0.6

   

 Catheter-related

0.90

0.64, 1.26

0.5

   

 Systemic infections

1.63

1.39, 1.91

< 0.001

1.38

1.15, 1.66

 < 0.001

 Neurologic

0.48

0.18, 1.27

0.14

   

Initial septic shock

1.56

1.38, 1.76

< 0.001

1.55

1.37, 1.76

< 0.001

Inappropriate use of antibiotics

1.60

1.39, 1.83

< 0.001

1.37

1.19, 1.57

< 0.001

Source control

0.45

0.38, 0.54

< 0.001

0.51

0.42, 0.62

< 0.001

  1. HR Hazard ratio, CI Confidence interval, BMI Body mass index, ECOG European Cooperative Oncology Group, CFS Clinical Frailty scale