Table 3. Changes in Occupancy by Service Line During Low and High COVID-19 Admissions for 45 US States^a.

Service line	Occupancy per 100 beds
	2019, Mean (SE)b	2020 with COVID-19, %	Low COVID-19 admissions				High COVID-19 admissions
			Weeks 11-26		Weeks 27-48		Weeks 11-26		Weeks 27-48
			Percentage-point change (95% CI)	Change relative to mean, %c	Percentage-point change (95% CI)	Change relative to mean, %	Percentage-point change (95% CI)	Change relative to mean, %	Percentage-point change (95% CI)	Change relative to mean, %
Maternal	11.1 (0.2)	1.1 (0.1)	−0.6 (−0.7 to −0.5)	−5.4	−0.9 (−1.1 to −0.7)	−8.1	−1.1 (−1.3 to −0.8)	−9.9	−0.7 (−0.9 to −0.5)	−6.3
Mental health and substance use disorder	5.7 (0.2)	1.5 (0.1)	−0.7 (−0.8 to −0.6)	−12.3	−0.4 (−0.7 to −0.2)	−7.0	−2.3 (−2.8 to −1.9)	−40.4	−0.3 (−0.4 to −0.2)	−5.3
Injury	4.2 (0.1)	2.0 (0)	−0.4 (−0.4 to −0.3)	−9.5	0 (−0.1 to 0.1)	0	−1.2 (−1.3 to −1.0)	−28.6	−0.2 (−0.3 to −0.1)	−4.8
Surgery	19.7 (0.2)	4.2 (0.1)	−3.7 (−3.9 to −3.5)	−18.8	−1.2 (−1.4 to −1.0)	−6.1	−8.5 (−9.3 to −7.6)	−43.1	−2.3 (−2.5 to −2.0)	−11.7
Medical	39.4 (0.3)	11.8 (0.1)	−7.5 (−7.7 to −7.2)	−19.0	−3.3 (−3.7 to −2.9)	−8.4	10.7 (9.5 to 11.9)	27.2	12.4 (11.9 to 13.0)	31.5

^a Data are from the Agency for Healthcare Research and Quality Healthcare Cost and Utilization Project State Inpatient Databases (2019-2020) for 45 US states.

^b All results were weighted by the number of admissions for each hospital in 2019.

^c Changes compared outcomes for each hospital-week in weeks 11 to 48 of 2020 to the corresponding hospital-week in 2019 (ie, regression models included hospital-week fixed effects). Low COVID-19 admission rates correspond to less than 1 weekly COVID-19 admission per 100 beds, whereas high COVID-19 admission rates correspond to 15 or more weekly COVID-19 admissions per 100 beds.