Table 3.
Mean CD4+ cell counts and uncertainties derived for different vials and dilutions
Non weighted mean value  μL−1
|
Uncertainty of mean value  μL−1
|
Standard deviation  μL−1
|
Number of measurement values n | Expansion factor k |  |
Consistency test | |
|---|---|---|---|---|---|---|---|
| Dilution 1, vial 1 | 327.9 | 9.1 | 39.6 | 21 | 2.080 | 243.1 | Negative |
| Dilution 1, vial 2 | 297.4 | 7.4 | 31.0 | 20 | 2.086 | 445.7 | Negative |
| Dilution 1, vial 3 | 288.3 | 10.0 | 43.5 | 20 | 2.086 | 495.4 | Negative |
| Dilution 2, vial 1 | 307.7 | 6.3 | 26.8 | 22 | 2.074 | 158.6 | Negative |
| Dilution 2, vial 2 | 305.3 | 6.0 | 25.0 | 22 | 2.074 | 105.1 | Negative |
| Dilution 2, vial 3 | 284.4 | 9.9 | 44.8 | 22 | 2.074 | 374.3 | Negative |
Values for each of six vial / dilution combinations were averaged over all participants.