Table 4.

Distribution of IgG antibodies against S1/S2 SARS-CoV-2 positivity and clinical comorbidities.

Variables	Positives
			Total	X2	p	OR	95% CI
	No.	%
IgG SARS-CoV-2
Diabetes
Yes	36	11.7	74	57.1	0.001	0.13	0.075–0.234
No	272	88.3	310
Hypertension
Yes	57	18.5	109	74.1	0.001	0.105	0.60–0.184
No	251	81.5	275
Total	308		384
Autoimmune Diseases
Yes	8	2.6	8
No	300	97.4	376
Total	308		384	0.22	0.168	1.25	1.19–1–31
Respiratory Diseases
Yes	11	3.6	11
No	297	96.4	373
Total	308		384	2.7	0.08	1.25	1.19–1.32
Cardiac Diseases
Yes * No Total	4 304 308	1.3 98.7	4 308 384	24.5	0.0001	0.17	0.004–0.76

* X² = corrected.