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Table 1 Characteristics of 505 patients hospitalised with community-acquired pneumonia

From: Microbial aetiology, outcomes, and costs of hospitalisation for community-acquired pneumonia; an observational analysis

Characteristics All patients (n = 505)
Age in years (SD) 63.4 (18.0)
Male sex (%) 295 (58.4)
Comorbidities (%)  
Chronic obstructive pulmonary disease 98 (19.4)
Congestive heart failure 68 (13.5)
Renal disease 40 (7.9)
Diabetes mellitus 77 (15.2)
Liver disease 2 (0.4)
Pneumonia Severity Index class I-III (%) 279 (55.2)
Pneumonia Severity Index class IV-V (%) 226 (44.8)
Pathogens (%)  
Streptococcus pneumoniae 124 (24.6)
Coxiella burnetii 28 (5.5)
Haemophilus influenzae 27 (5.3)
Legionella pneumophila 20 (4.0)
Chlamydophila species 16 (3.2)
Mycoplasma pneumoniae 9 (1.8)
Staphylococcus aureus 9 (1.8)
Only viral pathogen 35 (6.9)
Other pathogen 27 (5.3)
No pathogen identified 210 (41.6)
Empirical antibiotic treatment (%)  
Beta-lactam, penicillins (monotherapy) 254 (50.3)
Other beta-lactam (monotherapy) 86 (17.0)
Beta-lactam, penicillins + quinolone 34 (6.7)
Beta-lactam, penicillins + macrolides 33 (6.5)
Other beta-lactam + aminoglycoside 20 (4.0)
Other beta-lactam + quinolone 16 (3.2)
Quinolone (monotherapy) 11 (2.2)
Macrolides, lincosamides and streptogramins (monotherapy) 11 (2.2)
Beta-lactam, penicillin + aminoglycoside 7 (1.4)
Other beta-lactam, penicillin + macrolides 7 (1.4)
Sulfanomides and trimethoprim (monotherapy) 6 (1.2)
Tetracyclines (monotherapy) 6 (1.2)
Other 14 (2.8)
Outcomes  
Length of hospital stay (IQR) 8.5 (6.0-13.0)
Intensive care unit admission (%) 38 (7.5)
In-hospital mortality (%) 24 (4.8)
30-Day mortality (%) 26 (5.1)
One-year mortality (%) 73 (14.5)
  1. Data are presented as number (%), mean (SD) or median (IQR).
  2. Abbreviations: IQR interquartile range, SD standard deviation.
  3. 7 patients were lost to follow-up.