Table 1.

DNA PCR, viral culture, and RT-PCR results from samples from 106 patients tested for HHV-6

Result of viral culture (DNA PCR result)RT-PCR resultaPredictive value (%)Sensitivity (%)Specificity (%)
+PositiveNegative
Positive (positive)193b 9595
Negative (negative)15598.8c 98.8c
Negative (positive)028
  • a +, positive; −, negative.

  • b Samples from two patients were positive for HHV-7 and HHV-6 by viral culture and DNA PCR but negative for HHV-6 by RT-PCR; these are excluded from analysis (see text).

  • c Calculated by using both the Negative (negative) and Negative (positive) values.