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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