Table 1.

Distribution of demographic features, comorbidities, and number of persistent symptoms in patients with COVID-19 and other non-SARS-CoV-2 infections.

	COVID-19 N = 236		Non-SARS-CoV-2 viruses N = 142		p-values	Total
	N	%	N	%		N	%
Median (interquartile range) age, years	10.0 (14.0–5.0)		2.0 (6.0–1.0)		<0.001	6.0 (12.0–2.0)
Age group
1–11 months	18	7.6	13	9.2	<0.001	31	8.2
1–4 years	34	14.4	78	54.9		112	29.6
5–9 years	59	25.0	38	26.8		97	25.7
10–14 years	71	30.1	10	7.0		81	21.4
15–18 years	54	22.9	3	2.1		57	15.1
Sex
Male	131	55.5	76	53.5	0.71	207	54.8
Female	105	44.5	66	46.5		171	45.2
Vaccination
Seasonal influenza	26	11.9	24	17.6	0.13	50	14.1
BCG	233	98.7	–	–	–	233	98.7
MMR	208	95.4	–	–	–	208	95.4
Comorbidities
Epilepsy	5	2.1	1	0.7	0.42	6	1.6
Gastrointestinal disorders	8	3.4	2	1.4	0.49	10	2.6
Bronchial asthma	17	7.2	10	7.0	0.95	27	7.1
Allergies	2	0.8	6	4.2	0.06	8	2.1
Congenital heart diseases	0	0	4	2.8	0.02	4	1.1
Atopic dermatitis	2	0.8	3	2.1	0.37	5	1.3
Rheumatic disorders	1	0.4	0	0	1.00	1	0.3
Cystic fibrosis	3	1.3	0	0	0.30	3	0.8
Urological disorders	1	0.4	1	0.7	1.00	2	0.5
Psychiatric disorders	6	2.5	0	0	0.09	6	1.6
Neurologic disorders	1	0.4	3	2.1	0.15	4	1.1
Congenital anomalies	3	1.3	0	0	0.30	3	0.8
Post-acute follow-up characteristics
Days since symptoms onset, median (interquartile range)	73.5 (110.0–43.0)		69.0 (84.0–58.0)		0.36	70.0 (100.25–48.5)
Persistent symptoms
None	65	30.0	97	75.2	<0.001	162	46.8
1	35	16.1	16	12.4		51	14.7
2	19	8.8	10	7.8		29	8.4
≥3	98	45.2	6	4.7		104	30.1