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Comparison of within-laboratory precision of CD4 and CD8 T-cell percentages for predicate method versus Flow-Count and tetraONE methodsa
| T cells | CD4 stratum (cells/μl) | Median %CV (P vs predicate method)
|
||
|---|---|---|---|---|
| Predicate method | Flow-Count method | tetraONE method | ||
| CD4 | All | 4.1 | 4.5 (0.530) | 3.7 (0.001) |
| <200 | 6.5 | 6.0 (0.863) | 4.3 (0.001) | |
| >200 | 3.4 | 3.3 (0.240) | 3.0 (0.225) | |
| CD8 | All | 1.9 | 1.8 (0.515) | 1.8 (0.268) |
| <200 | 1.8 | 2.0 (0.697) | 1.5 (0.016) | |
| >200 | 1.9 | 1.8 (0.565) | 2.0 (0.565) | |
See Table 4, footnote a.
