Table 5.
Mean IgM and IgG titer ± SD according to clinical status of COVID-19 patients and differences between groups.
| Factor | Number of Tests | Mean IgM Titer ± SD (AU/mL) | Different (p < 0.05) from Factor * | Mean IgG Titer ± SD (AU/mL) | Different (p < 0.05) from Factor * |
|---|---|---|---|---|---|
| A | 22 | 0.53 ± 0.55 | - | 3.49 ± 4.94 | D, E |
| B | 12 | 1.38 ± 1.49 | - | 10.3 ± 9.85 | - |
| C | 16 | 0.84 ± 0.92 | - | 6.13 ± 6.59 | D |
| D | 16 | 1.29 ± 1.81 | - | 18.5 ± 26.0 | A, C |
| E | 10 | 1.41 ± 1.70 | - | 20.1 ± 11.4 | A |
* significance level determined by one-way ANOVA test; A: asymptomatic; B: pauci-symptomatic; C: mild; D: severe; E: critical.