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Table 6 Multivariate Cox proportional hazards model for 28-day and 6-month survival for patients admitted to the ICU with CAP

From: Patients with community acquired pneumonia admitted to European intensive care units: an epidemiological survey of the GenOSept cohort

  Increment Hazard 95% CI P- value
28-day mortality     
 APACHE II score   1.06 1.03, 1.09 4.23E-05
 Mechanical ventilation   2.29 1.11, 4.72 2.56E-02
 Haematocrit 1% 0.97 0.95, 0.99 6.61E-03
 pH value 0.1 unit 0.83 0.73, 0.95 7.52E-03
6-month mortality     
 APACHE II score   1.04 1.02, 1.06 5.67E-05
 Mechanical ventilation   2.68 1.49, 4.85 1.06E-03
 Urine volume day 1 100 mL/day 0.98 0.96, 0.99 1.28E-04
 Lowest heart rate day 1   1.01 1.0, 1.01 4.60E-02
 Haematocrit % 0.97 0.95, 0.99 4.78E-04
 Diffuse bilateral CXR   1.38 1.07, 1.78 1.32E-02
  1. Final model is selected using a stepwise regression by Akaike-information-criteria. Results are adjusted for sex. Age correction included in APACHE II score. APACHE, acute physiology and chronic health evaluation; CXR, chest radiography.