Table 3.

Association between COVID-19 incidence and iron profile—logistic regression (adjusted for age and gender)

Variable	Groups	Crude				Adjusted
		B	OR	95% CI	P-value	B	OR	95% CI	P-value
ln-Ferritin	Mild	0.257	1.29	0.745 2.34	0.362	0.243	1.25	0.724 2.24	0.4
	Moderate	1.17	3.25	1.53 6.89	0.002	1.08	2.95	1.33 6.51	0.007
	Severe	2.036	7.65	2.69 19.74	< 0.001	1.81	6.1	2.24 16.64	< 0.001
	Critical	2.17	8.77	3.31 23.23	< 0.001	2.12	8.34	3.11 22.39	< 0.001
Fe	Mild	− 0.033	0.967	0.952 0.983	< 0.001	− 0.033	0.967	0.952 0.983	< 0.001
	Moderate	− 0.03	0.97	0.956 0.985	< 0.001	− 0.031	0.969	0.955 0.984	< 0.001
	Severe	− 0.047	0.954	0.935 0.973	< 0.001	− 0.045	0.956	0.937 0.976	< 0.001
	Critical	− 0.022	0.979	0.976 0.99	< 0.001	− 0.019	0.981	0.97 0.992	0.001
TIBC	Mild	0.01	1.01	0.999 1.02	0.067	0.009	1.01	0.999 1.02	0.071
	Moderate	− 0.001	0.999	0.999 1.008	0.856	0.002	1.002	0.993 1.01	0.697
	Severe	− 0.006	0.994	0.983 1.005	0.26	− 0.002	0.998	0.986 1.01	0.727
	Critical	− 0.004	0.996	0.989 1.003	0.25	− 0.004	0.996	0.989 1.004	0.341
Transferrin	Mild	0.015	1.015	1.006 1.025	0.001	0.015	1.015	1.006 1.024	0.002
	Moderate	0.006	1.006	0.999 1.013	0.084	0.008	1.008	1.001 1.015	0.31
	Severe	0.011	1.011	1.002 10.21	0.021	0.013	1.013	1.003 1.024	0.016
	Critical	0.004	1.004	0.998 1.01	0.184	0.004	1.004	0.998 1.01	0.216
Transferrin saturation	Mild	− 0.089	0.914	0.875 0.976	< 0.001	− 0.089	0.914	0.876 0.956	< 0.001
	Moderate	− 0.056	0.946	0.914 0.979	0.001	− 0.058	0.944	0.911 0.978	0.001
	Severe	− 0.117	0.89	0.846 0.936	< 0.001	− 0.115	0.892	0.843 0.943	< 0.001
	Critical	− 0.044	0.957	0.93 0.985	0.003	− 0.036	0.964	0.938 0.992	0.012