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Table 1 Age-specific case-fatality ratio for IMD overall, and by serogroup (B and C), Ontario, Canada, 2000–2010

From: Epidemiology of serogroup B invasive meningococcal disease in Ontario, Canada, 2000 to 2010

   Age groups
   <1 1-19 20-64 65+ Overall
Serogroup B # of deaths 7 4 11 4 26
  # of cases 52 85 86 19 242
  CFR (%) 13.5 4.7 12.8 21.1 10.7
Serogroup C # of deaths 0 7 16 3 26
  # of cases 3 48 83 15 149
  CFR (%) 0 14.6 19.3 20.0 17.4
  1. Age-specific case-fatality ratio (CFR) for serogroup B invasive meningococcal disease (IMD) cases in Ontario, Canada, from 2000 to 2010. The age-specific CFRs for serogroup C IMD are shown for comparison. Seventeen serogroup B IMD cases with only PHOL records were excluded from analysis because fatal outcome was unknown.