Table 1. Percentage of patients stratified by age and presence of underlying medical condition.

Age group (years)	Hospitalized without ICU admission		ICU admission
	Underlying condition	No underlying condition	Underlying condition	No underlying condition
19-64 years	19.9%	6.7%	9.4%	2.0%
≥65 years	44.5%	18.3%	22.2%	6.3%