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Table 3 Microbiological findings in different sample types

From: Penicillin treatment for patients with Community-Acquired Pneumonia in Denmark: a retrospective cohort study

 

Tested n(%)

Positive n (%a)

Three most common pathogens, n (%b)

N = 1320

Blood, (microscopy/culture)

981 (74%)

66 (7%)

Streptococcus pneumoniae, 40 (61%)

Staphylococcus areus, 4 (6%)

Escheria coli, 4 (6%)

Sputum/tracheobronchial secretion, (microscopy/culture)

501 (38%)

149 (30%)

Haemophilus influenza, 56 (36%)

Streptococcus pneumonia, 27 (18%)

Moraxella catarrhalis, 21 (14%)

Test for atypical bacteria, (PCR analysis)

213 (16%)

41 (19%)

Mycoplasma pneumoniae, 35 (85%)

Legionella pneumophilia, 3 (7%)

Chlamydia pneumoniae, 2 (5%)

Urine antigen test

133 (10%)

7 (3%)

Streptococcus pneumoniae, 4 (57%)

Legionella pneumophilia, 3 (43%)

  1. aPercentage of tested
  2. bPercentage of positive tests