Table 2 Point estimates and 95% confidence intervals from the lateral flow test (LFT) sensitivity obtained from the fitted Binomial mixed model against proportional sensitivity, for each brand at Dose 1
LFT brand | Antigen | Model sensitivity (%) [CI95%] | Proportional sensitivity (%) [CI95%] |
|---|---|---|---|
WANTAI SARS-CoV-2 Ab Rapid Test (Beijing Wantai Biological Pharmacy) | Spike-RBD | 47.16 [36.79,58.20] | 40.91 [30.54,51.91] |
Onsite COVID-19 IgG/IgM Rapid Test (CTK Biotech) | Spike | 86.58 [79.78,93.65] | 88.64 [80.09, 94.41] |
COVID-19 Total Ab Device (Fortress Diagnostics LTd) | Spike-RBD | 95.43 [87.42,97.42] | 97.72 [92.3, 99.72] |
NowCheck COVID-19 IgM/IgG Test (Bionote Co., LTD.) | Nucleoprotein | 76.24 [67.29, 85.08] | 76.14 [65.86, 84.58] |
Edinburgh Genetics COVID-19 Colloidal Gold Immunoassay Testing Kit, IgG/IgM Combined (Edinburgh Genetics) | Nucleoprotein | 68.50 [58.01, 76.88] | 69.32 [58.58, 78.71] |
Diagnostic Kit for SARS-CoV-2 IgM/IgG Antibody (Colloidal Gold) (Shanghai Kehua Bio-Engineering Co., Ltd.) | Nucleoprotein | 4.38 [1.24, 8.40] | 14.77 [8.11, 23.94] |
SARS-CoV-2 IgM/IgG Ab Rapid Test (Qingdao HIGHTOP Biotech Co., Ltd.) | Nucleoprotein and spike | 69.33 [58.71, 78.19] | 70.45 [59.78, 79.71] |
P4DETECT COVID-19 IgM/IgG (PRIME4DIA Co., Ltd) | Nucleoprotein and spike | 45.05 [34.13, 54.97] | 37.50 [27.40, 48.47] |