Table 3. Comparison of Co-Morbidities Among Studied Medical Staff in Razi hospital, Ahvaz, Iran ^a.

Comorbidity	Non-responder (n = 14) b	Responder (n = 225) b	Odds Ratio (95% CI)	P Value
Diabetes Mellitus c	2 (14.3)	6 (2.7)	7.3, 1.3 - 41.7	0.05
Immunosuppressive Drugs using c	5(35.7)	30 (13.3)	3.2, 1.1 - 11.5	0.03
Cardiovascular Diseases	1 (7.1)	36 (16.0)	0.40, 0.05 - 3.18	0.70
COPD	0	10 (4.4)	NA	0.54
Others	0	20 (8.9)	NA	0.30

^a Abbreviations: CI, confidence interval; COPD, chronic obstructive pulmonary diseases.

^b Data are presented as No. (%).

^c Statistically significant.