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Table 3 CAP pathogens and treatments administered

From: Retrospective epidemiological study for the characterization of community- acquired pneumonia and pneumococcal pneumonia in adults in a well-defined area of Badalona (Barcelona, Spain)

  Outpatientsa N=340 Inpatients N=241 Total N=581 p
Microbiological study
Non-studied, n 221 0 221  
Studied, n 119 241 360  
Negative, n 47 127 174  
Pathogen identified, n 72 114 186  
Streptococcus pneumoniae 25 82 107 <0.001
Influenza virus type A 41 9 50  
Legionella pneumophila 5 8 13  
Haemophilus influenzae 1 3 4  
Staphylococcus aureus 0 3 3  
Pseudomonas aeruginosa 0 3 3  
Other pathogens 0 6 6  
Treatments, %
Quinolones 52.9 51.8 52.7  
Penicillins 34.4 37.3 35.6  
Macrolides 5.9 1.7 4.1  
Cephalosporins 1.5 2.5 1.9  
Sulfonamide 0.3 0.8 0.5  
Combined therapy, %     
Amoxicillin/Azithromycin 4.1 0.0 2.4 <0.001
Cephalosporin/Azithromycin 0.9 5.8 2.8  
Change of treatment, % 5.9 8.7 7.1 NS
  1. aOutpatient: includes patients diagnosed in primary care centres and emergency rooms at hospitals.