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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Am J Transplant. 2014 Aug 4;14(9):2137–2147. doi: 10.1111/ajt.12794

Table 1.

Distribution of BKV staining results provided by participants1,2,3

TMA Core Panel Consensus4 Number of participant calls on slides stained in their own laboratory
0 A1 A2 A3 B1 B2 B3 C1 C2 C3 99
1 A1 2 2 2 1 7 19 11 9 15 11 2
2 A1 3 7 3 0 3 19 13 9 13 9 2
3 A1 1 3 0 1 5 22 8 4 13 22 2
4 A1 2 1 1 0 4 7 0 11 22 7 26
5 0 71 2 1 0 2 0 0 2 1 0 2
6 0 72 0 0 0 2 0 0 0 1 0 6
7 (neg. control) 0 75 2 0 1 0 0 0 2 0 0 1
8 (neg. control) 0 49 1 0 0 1 0 0 1 0 0 29
9 (neg. control) 0 78 0 0 0 1 0 0 1 0 0 1
10 (neg. control) 0 75 3 0 0 0 0 0 0 0 1 2
11 A1 2 2 0 1 5 10 8 2 17 33 1
12 B1 4 4 3 2 6 11 15 9 9 15 3
13 C1 8 11 2 0 22 9 6 12 9 0 2
14 0 28 13 0 0 9 0 0 6 0 0 25
15 A1 9 4 0 0 24 4 1 30 7 1 1
16 A1 7 9 2 0 18 4 1 21 10 8 1
17 0 39 22 1 0 7 3 0 2 0 2 5
18 A1 25 20 0 0 23 2 0 5 0 1 5
19 A1 13 17 5 6 2 7 18 0 1 8 4
20 0 16 12 12 4 5 3 18 0 1 6 4
21 A1 1 6 3 0 26 6 1 25 9 3 1
22 C1 1 0 0 0 2 2 1 25 32 14 4
23 A1 4 3 1 0 16 11 1 21 13 7 4
24 A1 4 4 0 0 14 8 3 20 9 5 14
25 (pos. cell line) B3 2 3 0 0 0 0 1 1 0 48 26

Legend (% participants):

graphic file with name nihms590573u1.jpg

1

Intensity scoring scale: 0 (no staining), A (weak), B (moderate), C (strong).

2

Percentage (of positive tubular epithelial cell nuclei) scoring scale: 0 (none), 1 (<10%), 2 (10–25%), 3 (>25%).

3

99 = tissue core cannot be evaluated for technical reasons.

4

Panel consensus scores for the “reference slide” (i.e. the slide judged by the panel as having the best overall staining intensity, specificity, and lack of background deposition).