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Table 2 Microbiological data retrieved from secondary diagnostic codes in discharge records (n = 502), and from blood culture samples (six hospitals, 2004-2006: n = 106)

From: Increasing incidence and mortality of infective endocarditis: a population-based study through a record-linkage system

Hospital discharge records

Isolates from blood

Microorganism (ICD9-CM)

n (%)

Microorganism

n (%)

Staphylococci

210 (42%)

Staphylococci

41 (39%)

S. aureus (38.11, 41.11)

87

S. aureus

31

Coagulase-negative Staphylococci (38.19, 41.19)

30

Coagulase-negative Staphylococci

7

Staphylococcus spp (38.1, 38.10, 41.1, 41.10)

93

Staphylococcus spp

3

Streptococci + Enterococci

213 (42%)

Streptococci+Enterococci

43 (41%)

Streptococci, all (38.0, 41.0x not 41.04)

186

S. bovis

11

  

S. mitis

8

  

Other Streptococci

11

Enterococci, all (41.04)

27

Enterococcus faecalis

10

  

Enterococcus spp.

3

Gram-negative bacteria (38.4x, 41.3-41.7)

50 (10%)

Gram-negative bacteria

13 (12%)

Others (38.2, 38.3, 41.2, 41.8, 98.84, 112.81

29 (6%)

Others

9 (8%)

  1. List of ICD-9-CM codes adopted:
  2. 38.1 Staphylococcal septicemia; 38.10 Staphylococcal septicemia, unspecified; 38.11 Staphylococcus aureus septicaemia; 38.19 Other staphylococcal septicemia
  3. Bacterial infection in conditions classified elsewhere and of unspecified site: 41.1 Staphylococcus; 41.10 Staphylococcus, unspecified; 41.11 Staphylococcus aureus; 41.19 Other Staphylococcus
  4. 38.0 Streptococcal septicemia
  5. Bacterial infection in conditions classified elsewhere and of unspecified site: 41.0 Streptococcus; 41.04 Group D [Enterococcus]
  6. 38.4 Septicemia due to other gram-negative organisms
  7. Bacterial infection in conditions classified elsewhere and of unspecified site: 41.3 K. pneumoniae; 41.4 E. coli; 41.5 H. influenzae; 41.6 P. mirabilis; 41.7 Pseudomonas
  8. 38.2 Pneumococcal septicaemia; 38.3 Septicemia due to anaerobes
  9. Bacterial infection in conditions classified elsewhere and of unspecified site: 41.2 Pneumococcus; 41.8 Other specified bacterial infections
  10. 98.84 gonococcal endocarditis; 112.81 candidal endocarditis