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Table 1 Bloodstream infection (BSI) episodes in three time periods

From: Trends in antimicrobial resistance and empiric antibiotic therapy of bloodstream infections at a general hospital in Mid-Norway: a prospective observational study

  Total 2002–2005 2006–2009 2010–2013
All BSIs 1995 (100,0) 582 (100.0) 638 (100.0) 775 (100.0)
Place of acquisition
 Community acquired 934 (46.8) 317 (54.5) 280 (43.9) 337 (43.5)
 Health care-associated 787 (39.4) 175 (30.1) 277 (43.4) 335 (43.2)
 Hospital acquired 274 (13.7) 90 (15.5) 81 (12.7) 103 (13.3)
Microbial agent(s)
Escherichia coli 686 (34.4) 186 (32.0) 231 (36.2) 269 (34.7)
Streptococcus pneumoniae 225 (11.3) 80 (13.8) 80 (12.5) 65 (8.4)
Staphylococcus aureus 218 (10.9) 72 (12.4) 55 (8.6) 91 (11.7)
Klebsiella spp. 135 (6.8) 22 (3.8) 44 (6.9) 69 (8.9)
 Beta-hemolytic streptococci 104 (5.2) 33 (5.7) 35 (5.5) 36 (4.6)
Enterococcus spp. 89 (4.5) 28 (4.8) 26 (4.1) 35 (4.5)
 Other mixed bacterial infections 68 (3.4) 21 (3.6) 19 (3.0) 28 (3.6)
Pseudomonas spp. 58 (2.9) 20 (3.4) 21 (3.3) 17 (2.2)
 Viridans group streptococci 57 (2.9) 15 (2.6) 19 (3.0) 23 (3.0)
 Coagulase-negative staphylococci 54 (2.7) 23 (4.0) 11 (1.7) 20 (2.6)
Proteus spp. 48 (2.4) 17 (2.9) 15 (2.3) 16 (2.1)
 Anaerobic Gram-negative bacteria 45 (2.3) 14 (2.4) 16 (2.5) 15 (1.9)
 Mixed Gram-negative aerobic or anaerobic bacteria 42 (2.1) 13 (2.2) 11 (1.7) 18 (2.3)
 Enterobacter spp. 37 (1.9) 8 (1.4) 14 (2.2) 15 (1.9)
 Other Enterobacteriaceae 37 (1.9) 7 (1.2) 12 (1.9) 18 (2.3)
 Other aerobic Gram-negative bacteria 19 (1.0) 5 (0.9) 4 (0.6) 10 (1.3)
Haemophilus influenzae 17 (0.9) 6 (1.0) 8 (1.3) 3 (0.4)
Candida spp. 14 (0.7) 1 (0.2) 4 (0.6) 9 (1.3)
 Anaerobic Gram-positive bacteria 11 (0.6) 3 (0.5) 4 (0.6) 4 (0.5)
 Mixed gram-positive aerobic or anaerobic bacteria 11 (0.6) 1 (0.2) 4 (0.6) 6 (0.8)
Neisseria meningitidis 9 (0.5) 4 (0.7) 2 (0.3) 3 (0.4)
Listeria monocytogenes 8 (0.4) 2 (0.3) 2 (0.3) 4 (0.5)
 Mixed bacterial and fungal infections 3 (0.2) 1 (0.2) 1 (0.2) 1 (0.1)
  1. The table shows number (percent) of BSIs overall, by place of acquisition, and by microbial agent(s)