LMO

Table. 1.

Analytical performance of the R-FIND COVID-19 IgG, IgG/M/A and IgM ELISA

R-FIND COVID-19 IgG R-FIND COVID-19 IgG/M/A R-FIND COVID-19 IgM
Limit of detection <0.502 <0.481 <0.198
Precision (CV)
- Repeatability
Within-run 10.24% 3.81% 6.86%
Between-runs 3.99% 2.00% 2.22%
Between-days 0.96% 5.64% 3.33%
Within-laboratory 8.83% 6.80% 7.08%
- Reproducibility
Between-sites 11.22% 7.89% 7.83%
Between-days 11.21% 7.91% 7.81%
Between-operators 11.78% 7.90% 7.81%
Between-lots 11.20% 7.84% 7.74%
Cross-reactivity No cross-reactivity to Influenza A IgA, Influenza B IgA, RSV IgM, RSV IgG, SARS-CoV IgG positive serum
Interference (control: 100%) Recovery rate: 89.71-107.90% Recovery rate: 95.27-106.25% Recovery rate: 89.71-107.90%

Abbreviations: COVID-19, coronavirus disease 2019; CV, coefficient of variation; RSV, respiratory syncytial virus; SARS-CoV, severe acute respiratory syndrome coronavirus.

Lab Med Online 2021;11:275~282 https://doi.org/10.47429/lmo.2021.11.4.275
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