Table. 1.

Correlation between vXM and pXM with MFI cutoffs established at different levels

MFI cutoff vXM result CDC pXM P-value Sensitivity of vXM to predict pXM (%) Specificity of vXM to predict pXM (%)

Positive (n=6) Negative (n=50)
500 Positive (n=31) 5 (16) 26 (84) 0.145 83 48
Negative (n=25) 1 (4) 24 (96)
1,000 Positive (n=22) 5 (23) 17 (77) 0.019 83 66
Negative (n=34) 1 (3) 33 (97)
2,000 Positive (n=11) 5 (46) 6 (54) <0.001 83 88
Negative (n=45) 1 (2) 44 (98)
5,000 Positive (n=5) 4 (80) 1 (20) <0.001 67 98
Negative (n=51) 2 (4) 49 (96)
10,000 Positive (n=4) 3 (75) 1 (25) <0.001 50 98
Negative (n=52) 3 (6) 49 (94)

Values are presented as number (%) unless otherwise indicated.

vXM, virtual cross match; pXM, physical cross match; MFI, mean fluorescence intensity; CDC, complement-dependent cytotoxicity.

Korean J Transplant 2021;35:230~237 https://doi.org/10.4285/kjt.21.0028
© Korean Journal of Transplantation