Table 4.

Factors associated with severe or critical illness (multivariable logistic regression model)

Variables	OR	95% CI	P value
Age (years)
0–20 (reference)	Reference
21–40	1.51	0.46 to 4.93	0.62
41–60	1.57	0.45 to 5.46	0.55
60+	1.39	0.3 to 6.49	0.94
Male gender	0.98	0.53 to 1.83	0.95
Qatari nationality (vs non-Qatari)	0.83	0.43 to 1.6	0.58
Hypertension	3.49	1.83 to 6.68	0.0002
Diabetes mellitus	3.17	1.76 to 5.71	0.0001
Cardiovascular disease	0.54	0.24 to 1.22	0.14
Chronic lung disease	1.64	0.79 to 3.42	0.19
Chronic kidney disease	1.31	0.41 to 4.21	0.65
Cancer	1.26	0.28 to 5.66	0.77