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Table 2 Univariate cox regression model for time to hospital discharge

From: Predictors for length of hospital stay in patients with community-acquired Pneumonia: Results from a Swiss Multicenter study

Parameters HR (95%CI) p
Demographics   
Female Gender 0.95 (0.83-1.08) 0.41
Age (age <60 Reference group)   
Age 60–70 years 0.63 (0.52-0.77) <0.001
Age 70–80 years 0.52 (0.43-0.63) <0.001
Age >80 years 0.46 (0.38-0.55) <0.001
Past medical history   
Fever (Temp > 38.5°C) 0.82 (0.71-0.95) 0.01
Active smoker 0.85 (0.73-0.98) 0.03
Regular alcohol consumption 1.15 (1.01-1.31) 0.05
Clinical presentation   
BP systolic < 90 mmHg 0.67 (0.44-0.99) 0.05
BP diastolic < 60 mmHg 0.77 (0.54-10.7) 0.22
Pulse > 100 bpm 0.93 (0.81-1.07) 0.32
Temperature >38.5 or < 36°C 1.01 (0.88-1.15) 0.93
Respiratory rate > 20 bpm 0.72 (0.62-0.82) <0.001
Confusion 0.76 (0.59-0.99) 0.04
Situation at home   
Nursing home or needing regular nursing assistance at home 0.70 (0.61-0.81) <0.001
Comorbid condition   
Chronic pulmonary disease 0.75 (0.65-0.86) <0.001
Chronic heart failure 0.68 (0.57-0.81) <0.001
Diabetes 0.8 (0.67-0.95) <0.001
Tumor 0.89 (0.73-1.09) 0.22
Chronic renal failure 0.73 (0.62-0.86) <0.001
Type of medical Insurance   
Private insurance 1.1 (0.93-1.3) 0.29
Initial blood analysis   
Procalcitonin (<0.1 ng/L Reference group)   
Procalcitonin 0.1-0.25 ng/L 0.97 (0.77-1.21) 0.76
Procalcitonin 0.25-0.5 ng/L 0.78 (0.6-1.01) 0.06
Procalcitonin >0.5 ng/L 0.69 (0.56-0.85) <0.001
C-reactive protein (<50 mg/L Reference group)   
C-reactive protein 50–100 mg/L 0.76 (0.6-0.96) 0.02
C-reactive protein 100–150 mg/L 1.03 (0.82-1.28) 0.82
C-reactive protein > 150 mg/L 0.78 (0.65-0.94) 0.01
Initial albumin level <30 g/L 0.80 (0.67-0.96) 0.02
Initial sodium <130 or >140 mmol/L 0.89 (0.76-1.04) 0.17
Severity of CAP   
Bacteremic CAP 0.74 (0.58-0.95) 0.02
Multilobar CAP 0.73 (0.56-0.93) 0.01
Development of empyema 0.41 (0.28-0.6) <0.001
ICU transfer during hospitalisation 0.45 (35–0.59) <0.001
Pneumonia severity index   
PSI class (per increase in PSI class) 0.71 (0.66-0.75) <0.001
  1. Of note, hazard ratios (HRs) lower than 1 correspond to an association of the factor with longer LOS, while high HRs correspond to earlier discharge.