Table 6. Anti-SARS-CoV-2 IgG antibodies levels in patients who presented unfavorable outcomes (VS and death) and in those who did not.

	No VS (n = 106)	VS (n = 12)	p value	Discharge (n = 96)	Death (n = 23)	p value
Anti-SARS-CoV-2 IgG (day 7) (U/ml)	2.4 ± 2.5	4.8 ± 0.0	ns	2.8 ± 2.6	1.6 ± 1.9	ns
Anti-SARS-CoV-2 IgG (day 14) (U/ml)	4.7 ± 2.2	4.1 ± 1.8	ns	4.3 ± 2.1	4.8 ± 2.3	ns
Anti-SARS-CoV-2 IgG (day 21) (U/ml)	4.9 ± 1.9	4.2 ± 3.6	ns	5.4 ± 1.6	3.5 ± 2.8	ns

Abbreviations: ns, not significant; VS, ventilation support.