Table 6.
Intra-laboratory variability for in-house standards (IH) relative to samples A, B and C.
| IH relative to A |
IH relative to B |
IH relative to C |
||||
|---|---|---|---|---|---|---|
| Lab | GCV | n | GCV | n | GCV | n |
| 1 | 7.9 | 9 | 12.4 | 9 | 18.5 | 9 |
| 2 | 15.2 | 9 | 23.3 | 7 | 21.9 | 7 |
| 3 | 27.1 | 9 | 30.3 | 9 | 39.7 | 9 |
| 4 | 5.8 | 12 | 9.8 | 12 | 7.8 | 16 |
| 8 | 12.9 | 7 | 20.9 | 7 | 24.0 | 11 |
| 9 | 10.6 | 7 | 38.0 | 5 | 23.9 | 6 |
| 10 | 10.1 | 9 | 10.3 | 9 | 10.6 | 9 |
| 11 | 17.3 | 12 | 15.0 | 10 | 23.1 | 12 |
| 12 | 10.7 | 8 | 6.2 | 7 | 8.8 | 10 |
| 13 | 9.1 | 15 | 11.6 | 16 | 10.7 | 16 |
| 14 | 13.1 | 9 | 11.0 | 8 | 16.8 | 12 |
| 15 | 5.7 | 9 | 9.6 | 9 | 7.8 | 12 |
| 16 | 37.0 | 3 | 21.6 | 3 | 18.6 | 4 |
| 18 | 187.8 | 6 | 168.9 | 7 | 138.7 | 5 |
| 20 | 24.9 | 6 | 29.6 | 5 | 24.9 | 8 |
| 21 | 1 | 24.4 | 2 | 18.7 | 5 | |
| 22 | 1 | 1 | 35.6 | 3 | ||
| 23 | 13.2 | 6 | 10.5 | 8 | 11.6 | 8 |
| 24 | 22.3 | 9 | 36.7 | 7 | 29.4 | 9 |
GCV — geometric coefficient of variation (%).
n — number of estimates used in calculation.