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Table 2 Emergency Department diagnoses of meningococcal disease and notifications of confirmed meningococcal cases, NSW, 2004 (retrospective evaluation)

From: Can near real-time monitoring of emergency department diagnoses facilitate early response to sporadic meningococcal infection? - prospective and retrospective evaluations

  Confirmed meningococcal cases Not notified as meningococcal case Total
ED diagnosis of meningococcal disease 54 93 147
ED diagnosis other than meningococcal disease 95 (including 19 unmatched cases) Unknown N/A
Total 149 N/A N/A
  1. Sensitivity = 54/(54+95) = 36.2% (95%CI: 28.9%-44.5%)
  2. Positive Predictive Values = 54/(54+93) = 36.7% (95%CI: 28.5%-44.0%)