Clinical application of combined detection of SARS-CoV-2-specific antibody and nucleic acid

Table 1 Severe acute respiratory syndrome coronavirus immunoglobulin M and immunoglobulin G antibody detection result, n (%)

SARS-CoV-2; IgM antibody detection	SARS-CoV-2; IgG antibody detection		P value
	Positive	Negative
Positive	310 (99.7)	1 (0.3)	< 0.0011
Negative	282 (82.7)	59 (17.3)

¹Pearson’s χ² test, χ² = 56.46, P < 0.001. SARS-CoV-2: Severe acute respiratory syndrome coronavirus 2.