Table 2 Frequency table in statistical analyses
|  | x < l | l ≤ x ≤ u | u < x | Total |
|---|---|---|---|---|
Plasma cell myeloma | na | nb | nc | 27 |
Control | nd | ne | nf | 23 |
|  | x < l | l ≤ x ≤ u | u < x | Total |
|---|---|---|---|---|
Plasma cell myeloma | na | nb | nc | 27 |
Control | nd | ne | nf | 23 |