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Table 1 Microbiologic aetiology by IE type in 705 patients with left-sided infective endocarditis.

From: Prognostic factors in left-sided endocarditis: results from the andalusian multicenter cohort

Microorganism Native Early Prosthetic Late Prosthetic Total
Streptococci     
   Streptococcus viridans group 132 (25) 3 (4) 21 (21) 156 (22)
   Enterococcus spp 60 (11) 6 (9) 12 (12) 78 (11)
   Streptococcus bovis 18 (3) 0 1 (1) 19 (3)
   Streptococcus agalactiae 12 (2) 0 3 (3) 15 (2)
   Others 21 (4) 0 3 (3) 24 (3)
Staphylococci     
   Staphylococcus aureus 106 (21) 11 (16) 12 (14) 137 (19)
   Coagulase-negative Staphylococci 45 (8) 34 (50) 23 (23) 102 (15)
Gramnegative bacilli 14 (3) 1 (2) 1 (1) 16 (2)
HACEK Group 5 (1) 0 4 (4) 9 (1)
Brucella spp 12 (2) 0 0 12 (2)
Coxiella burnetii 12 (2) 0 6 (6) 18 (3)
Fungi 5 (1) 3 (4) 1 (1) 9 (1)
Other 12 (2) 4 (6) 4 (4) 20 (3)
Polymicrobial 19 (4) 0 0 19 (3)
Unknown 53 (10) 7 (10) 11 (11) 71 (10)
Total 534 (100) 69 (100) 102 (100) 705
  1. Data are expressed as number of cases (%).