The Controversy Over Contentious UNC2881-Tactics

Virtual crossmatching was performed comparing donor tissue typing as determined by a single specific primer-polymerase chain reaction (SSP-PCR) with HLA antibodies as identified after performing a single-antigen test on pre-transplant sera. Statistical analysis was performed using IBM SPSS Statistics version 19 software for Mac. Normally distributed data were reported as mean �� standard deviation (SD) and mean values were compared using Student's t-test. Non-normally distributed data were reported as median �� IQR, with the exception of ��number of transplants received�� in Table 1, where the decision was selleck inhibitor made to report the mean to emphasize that the vast majority of cases had received their first transplant. Probabilities for this sample set were calculated using Wilcoxon's signed-rank analysis for related samples. Nominal data were reported as proportions �� 95% confidence interval and the differences were analysed using the Chi-squared test. P UNC2881 survival in cases was 3 (interquartile range, IQR 0.57�C13) weeks and that of controls 310 (IQR 210�C440) weeks, and 88% of controls had functioning grafts at the end of the study period. The demographic variability and matching criteria were checked and there was no significant difference found between the groups. There was also no significant difference in the number of CMV-positive donors (P = 0.279; see Table 1). Using single-antigen beads as described in the Materials and methods section and an MFI cut-off of 1000, 19 cases (47.5%) and 9 controls (22.5%) were classed as positive [difference 25% (12.5�C37.5), P AP24534 manufacturer in the control group. One case had a DSA with an MFI of 866. Given a tolerance of between 10 and 15% of the Luminex assay in our experiments, this sample may or may not reach a cut-off of 1000 if retested. Analysis was undertaken both including and excluding this case to assess its impact (see Table 2). Table 2. Detected HLA antibodies For the purpose of analysis, both scenarios were evaluated. If this sample is excluded from analysis, there appear to be 12.5% (5.57�C19.4; P = 0.077) more DSA in the graft-loss group, although this does not reach statistical significance. If this case is included, there appear to be 15% (7.80�C22.2; P = 0.043) more DSA in the graft-loss group, which would be significant at the 5% level (see Table 2).