TABLE 2.
Prognosis of kidney allograft failure based on urine profile componentsa
| Peaks present | Failed (n) | Pb | Sensitivity | Specificity | PPVc | NPVd |
|---|---|---|---|---|---|---|
| Any one of m/z = 4272, 4337, 4860, 5007, 13350, 15835 | ||||||
| No (n = 78) | 3 | <0.0005 | 88% | 56% | 28% | 96% |
| Yes (n = 81) | 23 | |||||
| m/z = 9480 | ||||||
| No (n = 89) | 6 | <0.0005 | 77% | 62% | 28% | 93% |
| Yes (n = 70) | 20 | |||||
| B2M | ||||||
| No (n = 77) | 7 | 0.016 | 73% | 53% | 23% | 91% |
| Yes (n = 82) | 19 | |||||
| Creatinine | ||||||
| <2.3 (n = 98) | 4 | <0.0005 | 85% | 71% | 36% | 96% |
| >2.3 (n = 61) | 22 | |||||
a
Time of MALDI-TOF analysis = 0.
b
Pearson’s uncorrected χ2 value.
c
Positive predictive value.
d
Negative predictive value.
B2M, β-2 microglobulin; MALDI-TOF, matrix assisted laser desorption/ionization time-of-flight.