Table 7.
TGF‐β Assay values (pg/ml) by laboratory technician (medians; quartiles)
| n | TFG‐β post‐commuting | P‐value | |
|---|---|---|---|
| Batch/operator 1 | |||
| Patient | 13 | 67 833 (63 066, 74 606) | 0·686 |
| Control | 2 | 63 505 (56 497, 70 512) | |
| Batch 2 | |||
| Patient | 11 | 22 216 (20 548, 26 273) | 0·766 |
| Control | 9 | 21 361 (18 683, 26 376) | |
| Batch 3 | |||
| Patient | 0 | – | – |
| Control | 10 | 19 894 (14 934, 27 377) | |
| Operator 2 | |||
| Patient | 11 | 22 216 (20 548, 26 273) | 0·471 |
| Control | 19 | 21 298 (17 361, 26 554) | |
Operator 1 versus operator 2: patient versus patient, P < 0·001; control versus control, P = 0·010. TGF = transforming growth factor.