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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: J Health Econ. 2021 Nov 27;81:102569. doi: 10.1016/j.jhealeco.2021.102569

Table 1:

Baseline (2009) Summary Statistics for Analytic Sample

Become Vertically Integrated Never Vertically Integrated Always Vertically Integrated
(%) (%) (%)
Any ASC Use 33.1 43.3 15.0
Mean (SD) Mean (SD) Mean (SD)
Number of ASCs 0.4 (0.7) 0.6 (0.8) 0.2 (0.4)
Share of Medicare Cases in ASCs 0.17 (0.33) 0.28 (0.40) 0.04 (0.13)
Share of Commercial Cases in ASCs 0.17 (0.32) 0.30 (0.40) 0.05 (0.16)
Total Cases 212.0 (320.9) 194.6 (345.0) 197.8 (280.4)
Total Charges (‘000) 2,068 (1,151) 1,474 (2,083) 1,573 (2,030)
Avg. Number of Procedures per Case 3.4 (2.9) 3.3 (2.8) 3.9 (2.5)
Observations (N) 441 4,321 567

Notes: Analytic data are from the universe of outpatient procedure discharge records in Florida. “Commercial” refers to privately insured, non-Medicare patients. “HOPDs” are hospital outpatient departments. “ASCs” are ambulatory surgery centers. All reported charges are in nominal dollars and are not deflated by any cost-to-charge discount factor.