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Table 3 Adjusted hospital mortality risk for subgroups

From: Association between aspirin therapy and the outcome in critically ill patients: a nested cohort study

Variable

Adjusted odds ratio

95 % confidence interval

P value for interaction

All patients

0.95

0.60, 1.49

0.82

Age ≤ 58

0.76

0.25, 1.99

0.12

Age > 58

0.99

0.60, 1.67

Males

0.65

0.35, 1.21

0.26

Females

1.59

0.78, 3.24

Diabetes, yes

0.81

0.46, 1.42

0.002

no

1.09

0.52, 2.29

APACHE ≤ 23

0.37

0.13, 1.11

0.96

APACHE > 23

1.14

0.67, 1.94

Sepsis present

0.89

0.41,1.93

0.16

Sepsis absent

1.04

0.59, 1.82

Severe sepsis present

1.23

0.58, 2.60

0.12

Severe sepsis absent

0.70

0.39, 1.27

Non operative

0.95

0.60, 1.50

0.88

Post-operative

0.34

0.02, 4.43

Chronic Respiratory disease

   

Yes

1.18

0.54, 2.60

0.39

No

0.80

0.45, 1.42

Chronic Cardiac disease

   

Yes

0.92

0.47, 1.80

0.21

No

0.75

0.39, 1.43

Chronic Renal disease

   

Yes

0.81

0.30, 2.20

0.55

No

0.96

0.57, 1.60

Chronic liver disease

   

Yes

0.28

0.03, 2.24

0.21

No

1.05

0.66, 1.66

Chronic immunosuppression

   

Yes

0.76

0.15, 3.73

0.14

No

1.003

0.63, 1.61

Platelets × 109/L ≤ 184

0.71

0.35, 1.46

0.73

Platelets × 109/L > 184

1.34

0.74, 2.44

Bilirubin (μmol/l) ≤ 16

0.76

0.36, 1.62

0.16

Bilirubin (μmol/l) > 16

0.87

0.40, 1.90

Creatinine (μmol/l) ≤ 102

0.97

0.41, 2.28

0.39

Creatinine (μmol/l) > 102

0.83

0.49, 1.42

Statin users

1.17

0.50, 2.74

0.74

Statin non-users

0.75

0.42, 1.32

PaO2/FiO2 ratio >200

0.43

0.19,0.97

0.14

PaO2/FiO2 ratio <200

1.56

0.88,2.79

  1. aAdjusted for propensity score which was calculated from age, sex, diabetes, admission category, APACHE, chronic respiratory disease, chronic renal disease, chronic immunosuppression, creatinine, PaO2/FiO2 ratio, platelets, and statin use