Table 3.

Influence of BMI and comorbidities on time to seronegativation of SARS‐CoV‐2 IgG

	Univariate analysis		Bivariate analysis considering age as a covariate
	p value	Hazard ratio (95% CI)	p value	Hazard ratio (95% CI)
BMI	0.020*	0.843 (0.730–0.973)	0.018*	0.844 (0.733–0.791)
Cardio‐vascular disease	0.23	2.328 (0.601–9.017)	0.13	2.990 (0.729–12.262)
Hypertension	0.23	2.301 (0.594–8.906)	0.15	2.836 (0.695–11.573)
Pulmonary disease	0.62	1.490 (0.316–7.018)	0.50	1.724 (0.355–8.365)
Diabetes	0.58	0.553 (0.070–4.364)	0.56	0.537 (0.068–4.248)
Immunodeficiency	0.0042**	6.170 (1.777–21.430)	0.0030**	6.703 (1.911–23.512)

Abbreviations: BMI, body mass index; CI, confidence interval; SARS‐CoV‐2, severe acute respiratory syndrome coronavirus 2.