Table 2

Discrepant analysis of stool specimens between Xpert C. difficile, Xpert C. difficile/Epi, and Illumigene C. difficile assays with toxigenic culture

SpecimenaTest result
Xpert C. difficile and Xpert C. difficile/EpiIllumigene C. difficileCCNAToxigenic culturePresumptive 027/NAP1/BIb
P1PositiveNegativeNegativePositiveNegative
P2PositiveInvalidNegativePositivePositive*
P3PositiveNegativePositivePositivePositive*
P4PositiveNegativeNegativePositiveNegative
P5PositiveNegativePositivePositiveNegative
P6PositiveNegativePositivePositiveNegative
P7PositiveNegativeNegativePositiveNegative
P8PositiveNegativeNegativePositiveNegative
R1PositiveNegativePositivePositiveNegative
R2PositiveNegativePositivePositivePositive*
R3PositiveNegativePositivePositivePositive*
  • a P, prospective stool specimens; R, retrospective stool specimens.

  • b *, 027/NAP1/BI results were confirmed by PFGE and tcdC sequencing.