Table 4.

Length of hospital stay in patients admitted to hospital with coronavirus disease 2019 (covid-19) versus seasonal influenza, among patients discharged from hospital (n=15 009)

Outcome	Measure	Seasonal influenza (n=12 388)	Covid-19 (n=2621)	Unadjusted days difference* (95% CI)	Adjusted days difference* † (95% CI)
Length of hospital stay, days	Median (IQR)	3 (2-6)	6 (3-12)	3.11 (2.36 to 3.87)	3.00 (2.20 to 3.80)
	Mean (SD)	7 (19.00)	10 (10.99)

IQR=interquartile range.

^*Seasonal influenza group served as reference.

^†Models adjusted for age, sex, race, smoking status, body mass index, estimated glomerular filtration rate, chronic lung disease, cancer, cardiovascular disease, cerebrovascular disease, dementia, diabetes mellitus, hypertension, peripheral artery disease, and use of statins, angiotensin converting enzyme inhibitors/angiotensin II receptor blockers, and non-steroidal anti-inflammatory drugs.