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Table 2 Comparison of semi quantitative culture and RT-PCR results

From: Comparison of pneumococcal colonization density among healthy children and children with respiratory symptoms using real time PCR (RT-PCR)

Culture result RT-PCR positive (Cq =  < 35) (n = 124) RT-PCR negative (Cq > 35) (n-160)
No S. pneumoniae isolated (n = 167) 21 (12.6%) 146 (87.4%)
Heavy growth of S. pneumoniae isolated (n = 31) 31 (100%) 0
Moderate growth of S. pneumoniae isolated (n = 27) 25 (92.6%) 2 (7.4%)
Scanty growth of S. pneumoniae isolated (n = 59) 47 (79.7%) 12 (20.3%)
  1. *Percentages given with the culture result as the denominator