From: Impact of cryopreservation on tetramer, cytokine flow cytometry, and ELISPOT
Assay | Antigen | Sample Type | Cutoff Point1 | Sensitivity | Specificity | Area Under ROC Curve2 |
---|---|---|---|---|---|---|
Tetramer (% +) | CMV pp65 A2 peptide | Fresh | 0.05 | 92% | 88% | 0.906+/-0.076 |
 |  | Cryo. | 0.02 | 83% | 100% | 0.875+/-0.086 |
 | CMV pp65 peptide mix | Fresh | 0.13 | 90% | 71% | 0.819+/-0.075 |
CFC (% +) | Â | Cryo. | 0.05 | 90% | 76% | 0.920+/-0.046 |
 | CMV pp65 A2 peptide | Fresh | 0.08 | 75% | 100% | 0.844+/-0.084 |
 |  | Cryo. | 0.08 | 83% | 88% | 0.891+/-0.074 |
ELISPOT (# SFC) | CMV pp65 peptide mix | Fresh | 4 | 95% | 94% | 0.982+/-0.018 |
 |  | Cryo. | 16 | 90% | 100% | 0.985+/-0.015 |