Table 2.

Complications or death in patients admitted to hospital with seasonal hCoV infection in Belgium, 2015–20

		Any complication or death	Pneumonia	Respiratory assistance	Intensive care unit	Acute respiratory distress syndrome	Death
Patients admitted with complete follow-up data (n=262)		90 (34·4%)	64 (24·4%)	37 (14·1%)	19 (7·3%)	9 (3·4%)	8 (3·1%)
Per age group, years
	0–4 (n=105)	29 (27·6%)	17 (16·2%)	13 (12·4%)	2 (1·9%)	3 (2·9%)	1 (1·0%)
	5–14 (n=8)	4 (50·0%)	4 (50·0%)	1 (12·5%)	0	0	0
	15–64 (n=48)	24 (50·0%)	18 (37·5%)	9 (18·8%)	7 (14·6%)	4 (8·3%)	2 (4·2%)
	≥65 (n=101)	33 (32·7%)	25 (24·8%)	14 (13·9%)	10 (9·9%)	2 (2·0%)	5 (5·0%)
Potential risk factor
	Yes (n=161)	66 (41·0%)	46 (28·6%)	27 (16·8%)	17 (10·6%)	8 (5·0%)	6 (3·7%)
	No (n=101)	24 (23·8%)	18 (17·8%)	10 (9·9%)	2 (2·0%)	1 (1·0%)	2 (2·0%)
Co-infection
	Single seasonal hCoV plus other (n=110)	33 (30·0%)	21 (19·1%)	14 (12·7%)	4 (3·6%)	1 (0·9%)	1 (0·9%)
	Single seasonal hCoV (n=152)	57 (37·5%)	43 (28·3%)	23 (15·1%)	15 (9·9%)	8 (5·3%)	7 (4·6%)

Data are n (%). Complications or death are not mutually exclusive. hCoV=human coronavirus.