Table 2.

Risk factors (OR and adjusted OR) associated with COVID-19

	Univariate analyses		Multivariate analysis
Variables	OR (95 % CI)	P-value	Adjusted OR (95 % CI)	P-value
Sex of patients
Male vs female	0.761 (0.659; 0.878)	P<0.001	0.835 (0.703;0.9901)	0.038
Age group by categories: ref: 91 to 100 years
≤10	2.025 (0.227;18.074)	0.527	0.788 (0.362;1.716)	0.548
11 to 20	1.521 (0.188;12.289)	0.693	1.813 [1.239; 2.654]	0.002
21 to 30	1.664 (0.209;13.241)	0.630	1.798 (1.419; 2.277)	<0.001
31 to 40	1.664 (0.260;16.452)	0.491	1.322 (1.065;1.641)	0.011
41 to 50	2.260 (0.284;17.975)	0.440	1.041 (0.834;1.298)	0.724
51 to 60	3.016 (0.379; 23.967)	0.296	0.652 (0.527; 0.805)	<0.001
61 to 70	3.883 (0.487; 30.929)	0.200	0.547 (0.430;0.695)	<0.001
71 to 80	3.815 (0.475; 30.628)	0.207	0.648 (0.469; 0.897)	0.009
81 to 90	4.078 (0.493; 33.707)	0.192	0.715 (0.419;1.223)	0.221
91 to 100	–	<0.001	–	<0.001
Symptoms
Fever: yes vs no	11.471 (9.347;14.077)	<0.001	4.524 (3.496; 5.853)	<0.001
Fatigue: yes vs no	7.071 (5.985; 8.355)	<0.001	2.383 (1.891; 3.003)	<0.001
Cough: yes vs no	6.519 (5.367; 7.919)	<0.001	1.860 (1.431; 2.419)	<0.001
Diarrhoea: yes vs no	5.153 (3.795; 6.996)	<0.001	0.445 (0.285; 0.695)	<0.001
Loss of taste and/or smell: yes vs no	18.125 (13.792; 23.817)	<0.001	10.484 (7.740; 14.202)	<0.001
Other symptoms: yes vs no	3.329 [2.619; 4.232)	<0.001	1.159 (0.841; 1.596)	0.367
Reasons for testing
Contact cases: yes vs no	1.451 (1.248; 1.687)	<0.001	1.447 (0.981; 2.135)	0.063
Screening: yes vs no	3.258 (2.814; 3.772)	<0.001	2.156 (1.470; 3.160)	<0.001
Travel: yes vs no	0.034 (0.022; 0.054)	<0.001	0.061 (0.034; 0.108)	<0.001
Other reasons for screening: yes vs no	0.889 (0.610; 1.294)	0.539	1.412 (0.900;2.216)	0.133