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Table 1 Distribution and total number of hospitals and patients* by hospital volume and year

From: Estimating cost savings from regionalizing cardiac procedures using hospital discharge data

  PCI CABG
  Hospital Volume Hospital Volume
  < 200 200–399 400+ Total # < 200 200–449 450+ Total #
Hospitals         
1988–1991 41.0% 32.7% 26.3% 806 36.0% 42.1% 21.9% 773
1992–1996 25.5% 28.0% 46.5% 874 28.4% 42.5% 29.1% 829
1997–2000 24.8% 22.4% 52.8% 841 27.6% 39.8% 32.6% 753
Patients         
1998–1991 12.9% 29.7% 57.4% 1.03 million 11.3% 39.2% 49.4% 1.06 million
1992–1996 5.4% 17.5% 77.2% 2.03 million 7.9% 33.8% 58.2% 1.67 million
1997–2000 4.2% 11.9% 83.9% 1.90 million 7.9% 29.5% 62.6% 1.27 million
  1. *The data are weighted so that they are representative of the US population.
  2. The middle time period is based on five years of data; other time periods contain data from four years.