TABLE 2.

Pathogen distribution

PathogenNo. (%) of patients with a combination of infections (n = 639)% of patients with bacteremiaNo. (%) of patients with indicated infectionP value
CAP (n = 208)HCAP (n = 431)
MRSAc157 (24.6)30.625 (12.0)132 (30.6)<0.001
Streptococcus pneumoniae130 (20.3)53.185 (40.9)45 (10.4)<0.001
Pseudomonas aeruginosa120 (18.8)15.810 (4.8)110 (25.5)<0.001
MSSAc88 (13.8)23.928 (13.5)60 (13.9)0.874
Haemophilus species54 (8.5)5.636 (17.3)18 (4.2)<0.001
Other nonfermenting gram-negative rodsa46 (7.2)21.34 (1.9)43 (10.0)<0.001
Other Enterobacteriaceaeb44 (6.9)29.55 (2.4)39 (9.0)0.002
Klebsiella species35 (5.5)34.37 (3.4)28 (6.5)0.103
Escherichia coli30 (4.7)60.012 (5.8)18 (4.2)0.372
Legionella species8 (1.3)07 (3.4)1 (0.2)0.017
  • a Acinetobacter species, Stenotrophomonas maltophilia, Alcaligenes xylosoxidans, Burkholderia species.

  • b Enterobacter species, Citrobacter species, Serratia marcescens, Proteus species, Morganella species.

  • c MRSA, methicillin-resistant Staphylococcus aureus; MSSA, methicillin-sensitive Staphylococcus aureus.