Table 2 Comparison of avidity values from serum and CSF pairs obtained with different calculation methods from different dilutions (absorbance ratios) or different pairs of dilutions (new method and "Avidity 1.2"). For each method, mean values, standard deviations (SD) and coefficients of variation (CV) are presented.
V2.1 | V9.2 | M22 | ||||
|---|---|---|---|---|---|---|
Serum | CSF | Serum | CSF | Serum | CSF | |
absorbance ratios | ||||||
Mean (%) | 50.2 | 54.0 | 59.9 | 66.4 | 34.7 | 38.6 |
SD (%) | 5.6 | 5.4 | 7.8 | 8.5 | 4.1 | 6.1 |
CV (%) | 11.1 | 10.0 | 13.0 | 12.8 | 12.0 | 15.9 |
Avidity 1.2 | ||||||
Mean (%) | 37.6 | 45.4 | 50.5 | 56.5 | 23.2 | 31.9 |
SD (%) | 3.7 | 3.0 | 3.0 | 4.6 | 2.3 | 3.6 |
CV (%) | 9.9 | 6.6 | 5.9 | 8.1 | 9.9 | 11.4 |
new method | ||||||
Mean (%) | 49.8 | 58.4 | 65.2 | 72.6 | 36.5 | 45.1 |
SD (%) | 2.4 | 4.1 | 1.4 | 7.5 | 2.0 | 0.9 |
CV (%) | 4.9 | 7.1 | 2.1 | 10.3 | 5.6 | 1.9 |