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. 2021 Mar 30;18(9):1506–1513. doi: 10.1513/AnnalsATS.202007-786OC

Table 2.

Characteristics of hospitals, 2010–2017 (n = 449)

Hospital variables n Percentage or IQR
Urbanicity*    
 Urban 386 86
 Rural (including small) 63 14
Teaching hospital    
 No 415 92
 Yes 34 8
Number of beds    
 Median 50 68–273
 0–99 beds 156 35
 100–199 beds 115 26
 200–299 beds 73 16
 300–399 beds 43 10
 ≥400 beds 62 14
Safety-net hospital    
 No 341 76
 Yes 108 24
CMI    
 Median 1.3 1.1–1.5
 CMI >1.00 403 90

Definition of abbreviations: CMI = Case Mix Index; IQR = interquartile range.

Data are presented as n (%) unless otherwise specified. Eleven hospitals were missing data for ≥1 year.

*

Urban designation was determined by Section 124,840 of the California Health and Safety Code.

Safety-net hospitals were defined as those in which the percentage of Medicaid and uninsured discharges fell in the top quartile for that year.

The CMI is the average relative diagnosis-related group weight of a hospital’s inpatient discharges. A higher CMI (>1.0) indicates a more complex and resource-intensive case load.