Table 4.

Subgroup Analyses According to Age Group and Charson Comorbidity Index

	Multivariable Model
Variable	Hazard Ratio (95% CI)	P Value
Age: 20–39 y (n = 121 707, mortality = 219)
COVID-19 (vs control)	0.38 (0.05–2.74)	.339
Age: 40–59 y (n = 102 102, mortality = 1362)
COVID-19 (vs control)	1.14 (0.72–1.81)	.562
Age ≥60 y (n = 104 564, mortality = 9985)
COVID-19 (vs control)	2.32 (2.03–2.65)	<.001
Charson comorbidity index: 0–2 (n = 171 035, mortality = 1297)
COVID-19 (vs control)	1.75 (1.25–2.45)	.001
Charson comorbidity index ≥3 (n = 157 338, mortality = 10 269)
COVID-19 (vs control)	2.16 (1.88–2.48)	<.001

Abbreviation: COVID-19, coronavirus disease 2019.