Table 3.
Comparison of reported paraprotein and total Ig concentrations (g/L) between New South Wales laboratories.
| Sample 1 | Sample 2 | Sample 3 | Sample 4 | |||||
|---|---|---|---|---|---|---|---|---|
| Paraprotein | Total IgM | Paraprotein | Total IgG | Paraprotein | Total IgA | Paraprotein | Total IgA | |
| NSW Lab 1 | 25 | 34.2 | 1 | 6.4 | * | 5.9 | 11 | 14.2 |
| NSW Lab 2 | 28 | 33.5 | 3 | 6.6 | 6 | 6.5 | 16 | 13.9 |
| NSW Lab 3 | 24 | 36.1 | 5 | - | 5 | 7.7 | 12 | 14.3 |
| Mean (g/L) | 26 | 35 | 3 | 6.5 | 6 | 6.7 | 13 | 14.1 |
| SD (g/L) | 2.1 | 1.3 | 2.0 | 0.1 | 0.7 | 0.9 | 2.8 | 0.2 |
| CV% | 8.2 | 3.9 | 66.7 | 2.2 | 12.9 | 13.7 | 21.8 | 1.5 |
*
two co-migrating IgA bands not individually quantifiable