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Table 2 Infection characteristics

From: Clinical implications for patients treated inappropriately for community-acquired pneumonia in the emergency department

Variable Appropriate initial therapy (n = 187) Inappropriate initial therapy (n = 72) P value
Cultures source, n(%):    
 Blood only 46 (24.6) 13 (18.1) 0.041
 BAL 5 (2.7) 6 (8.3)  
 Sputum 105 (56.1) 34 (47.2)  
 Tracheal aspirate 31 (16.6) 19 (26.4)  
Achromobacter species 0 (0.0) 1 (1.4) 0.278
Acinetobacter species 1 (0.5) 5 (6.9) 0.007
Citrobacter species 1 (0.5) 0 (0.0) 1.000
Enterobacter species 1 (0.5) 6 (8.3) 0.002
Escherichia coli 11 (5.9) 0 (0.0) 0.038
Haemophilus influenzae 36 (19.3) 3 (4.2) 0.002
Klebsiella pneumoniae 7 (3.7) 1 (1.4) 0.450
Legionella species 1 (0.5) 0 (0.0) 1.000
Methicillin-resistant Staphylococcus aureus 0 (0.0) 34 (47.2) <0.001
Methicillin-susceptible Staphylococcus aureus 36 (19.3) 2 (2.8) <0.001
Moraxella catarrhalis 5 (2.7) 0 (0.0) 0.326
Proteus species 1 (0.5) 1 (1.4) 0.479
Pseudomonas aeruginosa 0 (0.0) 20 (27.8) <0.001
Streptococcus pneumoniae 79 (42.2) 3 (4.2) <0.001
Other Streptococci species 22 (11.8) 3 (4.2) 0.097
Polymicrobial, n (%): 14 (7.5) 5 (6.9) 0.881
Positive blood culture, n (%): 51 (27.3) 17 (23.6) 0.549
  1. BAL bronchoalveolar lavage.