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. Author manuscript; available in PMC: 2008 Dec 10.
Published in final edited form as: Forum Health Econ Policy. 2008;11(2):2. doi: 10.2202/1558-9544.1088

Table 6.

Simulated impact of networks on quality and distance for Medicare patients

Health plan Actual In-network Difference [95% CI]
Quality
  BeechStreet 0.0037 0.0071 0.0034 [0.0031, 0.0037]
  United 0.0037 0.0113 0.0076 [0.0073, 0.0079]
  Cigna 0.0040 0.0079 0.0039 [0.0035, 0.0042]
  Humana 0.0035 0.0063 0.0027 [0.0023, 0.0031]
  Aetna 0.0014 0.0072 0.0058 [0.0055, 0.0061]
Distance
  BeechStreet 54 101 47 [46, 47]
  United 52 66 14 [14, 14]
  Cigna 52 65 13 [13, 13]
  Humana 54 73 19 [19, 20]
  Aetna 50 66 15 [15, 16]