Table 5.
Propensity score matched results from BK viremic recipients (n=156) balanced for selected risk factors (full data are in Supplemental Table 9)
| Factor | Medulla | No Medulla | P Value |
|---|---|---|---|
| Biopsies, no. | 78 | 78 | |
| Recipient age, yr | 51±14 | 51±13 | 0.94 |
| Recipient, men, n (%) | 58 (74) | 62 (80) | 0.45 |
| Deceased donors, n (%) | 55 (71% | 62 (80) | 0.37 |
| HLA mismatch (of 6) | 3.8±1.7 | 3.9±1.6 | 0.66 |
| Prior corticosteroids (%) | 38 (49% | 38 (49) | 0.99 |
| Months post-transplant | 11.0±14.3 | 11.2±11.6 | 0.93 |
| Indication biopsy, n (%) | 30 (39) | 28 (36) | 0.74 |
| Serum creatinine, mg/dl | 1.88±1.04 | 1.71±0.74 | 0.23 |
| No. of cores | 2.04±0.87 | 1.94±0.73 | 0.43 |
| Maximal core length, mm | 13.0±5.3 | 12.6±5.2 | 0.62 |
| BK median copies | 8.549 | 8.019 | |
| Copies (IQR) | (5.54–10.21) | (4.61–10.84) | 0.70 |
| BKVAN, n (%) | 30 (39) | 17 (22) | 0.02 |
| Propensity score | 0.46±0.20 | 0.43±0.18 | 0.34 |
Mean ± SD. IQR, interquartile range; BKVAN, BK virus allograft nephropathy.