Table 2.

Summary of the main results at univariate analysis.

Variable	Hospital admission for COVID-19 related reasons			Complicated SARS-CoV-2 infection			Ventilatory support			ICU admission
	Yes	No	p	Yes	No	p	Yes	No	p	Yes	No	p
Age (median)	5.8	8.6	<0.001	7.2	7.3	0.86	6.6	7.4	0.38	7.7	7.3	0.68
Age group
<1year	117	38	<0.001	35	125	0.83	12	148	0.25	5	155
1–4 years	80	78		32	128		8	152		2	158
5–9 years	63	87		30	125		13	142		11	144	0.039
>10 years	101	168		52	232		12	272		9	275
Demographics
Male gender	207	205	0.57	83	343	0.9	26	400	0.81	16	410	0.73
Underlying clinical conditions	80	50	<0.001	47	89	<0.001	23	113	<0.001	14	122	<0.001
Immunosuppression	13	4	0.021	4	13	0.68	0	17	0.29	1	16	0.6
None/only one infected family member	217	153	<0.001	104	279	<0.001	39	344	<0.001	23	360	<0.001
Clinical manifestations
Fever	292	247	<0.001	125	422	<0.001	40	507	0.01	25	522	0.016
Abdominal pain	32	18	0.026	24	28	<0.001	7	45	0.017	4	48	0.095
Laboratory results
Leukocytosis	65	8	0.024	44	34	<0.001	18	60	<0.001	11	67	0.001
Lymphopenia	65	16	0.8	46	36	<0.001	20	62	<0.001	19	63	<0.001
Viral coinfection	44	1	0.016	21	24	0.87	13	32	0.015	8	37	0.009

ICU, intensive care unit. Bold values are statistically significant.