TABLE 2.
Biases among cell counts obtained by our cell enumeration system (SP ICM), TruCount, and DP data for different cell populations
| Comparisona | Bias from Bland-Altman plot (%) for the following cell type (antibody)b:
|
|||
|---|---|---|---|---|
| Leukocytes (CD45) | T lymphocytes (CD3) | B lymphocytes (CD19) | T lymphocytes (CD4) | |
| (TruC − ICM)/avg (%) vs avg | 10.1 | 10.0 | 0.3 | −37.5 |
| (DP − ICM)/avg (%) vs avg | −12.0 | −12.9 | −20.1 | −56.4 |
| (TruC − DP)/avg (%) vs avg | 22.0 | 22.8 | 20.5 | 20.0 |
a
Expressed as the difference between the results by two methods divided by the average of those results, expressed as a percentage, versus the average of the results obtained by the two methods. TruC, TruCount.
b
The number of patients was 50 for leukocytes (CD45), 52 for CD3+ T lymphocytes, 42 for B lymphocytes (CD19), and 45 for CD4+ T lymphocytes.