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Table 6 Diagnostic values of different methods with a real-time polymerase chain reaction as the gold standard

From: Mycoplasma pneumoniae as a causative agent of community-acquired pneumonia in children: clinical features and laboratory diagnosis

  Sensitivity (%) Specificity (%) PPV (%) NPV (%) PLR
Serology (IgM antibodies) 80.00 98.63 88.89 97.30 58.40
Serology (fourfold increase IgG antibodies) 90.00 97.26 81.82 98.61 32.85
Culture 90.00 100.00 100.00 98.65  
  1. Date are presented as percentage.
  2. RT-PCR: real-time polymerase chain reaction; PPV: positive predictive value; NPV: negative predictive value; PLR: positive likelihood ratio.