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. 2011 Mar 1;64(1):51–55. doi: 10.1007/s12070-011-0161-6

Table 3.

comparison between PCR and culture

Bacterial culture PCR Z P
No % No %
S. pneumonia 5 10 18 36 3.09 <0.001
M. catarrhalis 6 12 22 44 3.56 <0.0001
Both organism 1 2 6 12 1.96 <0.025
Negative 38 76 4 8 6.89 <0.0001