Table 3. Percentage decrease needed in each assay for statistical significance at various probability thresholds.
| Test | n | Total CV | P = 0.5 | P = 0.8 | P = 0.9 | P = 0.95 |
|---|---|---|---|---|---|---|
| Serum M-spike | 158 | 11.6 | 10.5 | 19.0 | 23.6 | 27.5 |
| Measurable serum M-spikea | 90 | 8.1 | 7.4 | 13.7 | 17.2 | 20.1 |
| Involved immunoglobulin (IgG) | 148 | 13.0 | 11.7 | 21.0 | 26.1 | 30.3 |
| Urine M-spike | 25 | 35.8 | 28.9 | 47.7 | 56.5 | 62.9 |
| iFLC | 158 | 34.9 | 28.3 | 46.9 | 55.6 | 62.0 |
| Measurable iFLCb | 52 | 28.4 | 23.7 | 40.2 | 48.3 | 54.5 |
| uFLC | 157 | 45.2 | 35.0 | 55.9 | 65.1 | 71.4 |
| rFLC | 157 | 36.4 | 36.4 | 57.7 | 66.9 | 73.2 |
a
Values >10 g/L.
b
Values >100 mg/L.