TABLE 8

Significant univariate and multivariate logistic regression analyses for the prediction of 30-day hospital mortality in the total population

UnivariateMultivariate#
OR (95% CI)p-valueOR (95% CI)p-value
Influenza vaccine1.76 (1.20–2.59)0.004
Diabetes mellitus1.49 (1.03–2.15)0.034
Neurological disease3.48 (2.54–4.77)<0.0011.99 (1.33–3.00)0.001
Cough0.61 (0.44–0.86)0.005
Dyspnoea3.07 (2.04–4.63)<0.001
Pleuritic pain0.45 (0.32–0.64)<0.001
PaO2/FIO2 <2505.07 (3.54–7.26)<0.0013.21 (2.19–4.71)<0.001
Nursing-home5.10 (2.79–9.32)<0.001
PSI risk class IV and V7.74 (5.01–11.91)<0.0014.13 (2.46–6.95)<0.001
CURB-65 risk class 3–55.45 (3.98–7.46)<0.001
ICU admission3.16 (2.32–4.31)<0.0011.85 (1.26–2.73)0.002
Mechanical ventilation<0.001
Not ventilated1
Noninvasive3.69 (2.13–6.37)<0.001
Invasive9.86 (6.62–14.70)<0.001
Length of hospital stay+ >7 days1.19 (1.11–1.29)<0.001
Appropriate empiric treatment0.29 (0.18–0.44)<0.0010.28 (0.16–0.50)<0.001
Bacteraemia§<0.0010.011
Non-bacteraemic CAP1
Non-ARP bacteraemia1.71 (1.11–2.64)0.0161.94 (1.18–3.19)0.009
ARP bacteraemia4.82 (2.04–11.42)<0.0012.48 (0.82–7.54)0.11
  • PaO2: arterial oxygen tension; FIO2: inspiratory oxygen fraction; PSI: pneumonia severity index; CURB-65: confusion, urea >7 mmol·L−1, respiratory rate ≥30 breaths·min−1, blood pressure <90 mmHg (systolic) ≤60 mmHg (diastolic), age ≥65 years; ICU: intensive care unit; CAP: community acquired pneumonia; ARP: antibiotic-resistant pathogens. #: Hosmer–Lemeshow goodness-of-fit test, p=0.050; : the p-value corresponds to differences between the three groups (not ventilated, noninvasive and invasive); +: length of hospital stay was treated as a continuous variable and >7 days indicates the increase by 7 days; §: the p-value corresponds to the differences between the three groups (non-bacteraemic CAP, non-ARP bacteraemia or ARP bacteraemia).