Table 3.
Distribution of BM sample pull, WBC count, and plasma cell percentages in groups of samples defined by the BMQI score.
| BMQI score | <0.5 | 0.5 - <1.4 | 1.4 - <2.5 | 2.5 - <3.5 | ≥3.5 | p-value | |
|---|---|---|---|---|---|---|---|
| BM sample pull | first, n (%) | 0 (0.0%) | 9 (4.1%) | 41 (18.7%) | 92 (42.0%) | 77 (35.2%) | |
| second, n (%) | 11 (8.3%) | 41 (31.1%) | 59 (44.7%) | 19 (14.4%) | 2 (1.5%) | ||
| WBC | (n) | (10) | (46) | (96) | (108) | (76) | <0.001 |
| WBC, 106/mL | 9.9 | 14.8 | 22.0 | 36.8 | 51.3 | ||
| MGUS | (n) | (7) | (27) | (42) | (34) | (18) | <0.001 |
| plasma cells, % | 0.084 | 0.14 | 0.32 | 0.73 | 0.92 | ||
| SMM | (n) | (3) | (19) | (47) | (64) | (53) | <0.001 |
| plasma cells, % | 0.077 | 0.68 | 2.2 | 2.7 | 2.7 | ||
| MM | (n) | (1) | (4) | (11) | (13) | (8) | 0.15 |
| % plasma cells | 2.2 | 2.6 | 3.7 | 8.0 | 5.1 |
BMQI bone marrow quality index, WBC white blood cell, MGUS monoclonal gammopathy of undetermined significance, SMM smoldering multiple myeloma, MM multiple myeloma.