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Table 1 Patient specific episodes of S. pneumoniae bacteremia, by age (1997–2013)

From: Prosthetic valve endocarditis due to Streptococcus pneumoniae

Year Age groups (years) S. pneumoniae/All positive
  1-20 21-70 71-110 UA Total (n, %) All positive2
      S. pneumoniae 1  
1997 36 13 13*   62 (1.4) 439
1998 42 39 22   62 (0.7) 848
1999 43 33 18   94 (1.3) 708
2000 40 27 20   87 (1.7) 523
2001 41 15 22   78 (0.9) 891
2002 52 21 11 2 84 (1) 876
2003 73 12 13   98 (1.1) 888
2004 46 14 21   81 (1) 789
2005 48 34 37   119 (1.3) 891
2006 62 46 24*   132 (1.4) 951
2007 66 33 19 1 118 (1.1) 1029
2008 63 39 47 2 149 (1.5) 997
2009 89 28 31   148 (1.4) 1087
2010 54 25 24   103 (0.9) 1176
2011 60 20 30   110 (0.9) 1191
2012 45 19 31   95 (0.8) 1205
2013 11 10 12*   33 (0.3) 839
Total 871 428 395 5 1694 (1.0) 16515
  1. UA, unavailable; each asterix* indicates one patient diagnosed that particular year with S. pneumoniae endocarditis.
  2. The difference in incidence of S. pneumoniae endocarditis between age 1–20 (0/871), adults aged 21–70 (0/428) and elderly (3/395 or 0.8%) was statistically insignificant.
  3. All patient-specific blood isolates of S. pneumoniae1 (n, and as % of all patient-specific true-positive blood isolates2 (i.e. excluding contaminants).