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Table 3 Comparison between the results of the 33 PET/CT studies and those of a reference standard in the post-treatment group

From: Diagnostic performance of PET/CT in primary malignant bone tumors

Cases A reference standard results χ2 P-value
PET/CT results  − ve  + ve
No % No %
-ve True –ve False −ve 22.06  < 0.01*
  13 39.4 1 3   
 + ve False + ve True + ve   
  2 6.1 17 51.5   
  1. χ2, chi-square test; P-value, probability
  2. *Significant P value (< 0.05)