Table 3.

Comparative performance of the three RT-PCR assays in follow-up specimens of confirmed COVID-19 patients.

Combination of different assays	No. of specimens missed by the assay(s) / total no. of positive follow-up specimens (%)	P-value*
LightMix® E-gene	5/83 (6.0)	N/A
COVID-19-RdRp/Hel	10/83 (12.0)	0.279
COVID-19-N	7/83 (8.4)	0.766
LightMix® E-gene + COVID-19-RdRp/Hel	0/83 (0)	0.059
LightMix® E-gene + COVID-19-N	3/83 (3.6)	0.720
COVID-19-RdRp/Hel + COVID-19-N	3/83 (3.6)	0.720
All 3 assays	0/83 (0)	0.059

* P-value for comparison between LightMix® E-gene assay and other assay combinations. N/A: not applicable.