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Table 4 Out-of-sample validation: RMSEs by payer and omitted state

From: Predicting inpatient hospital payments in the United States: a retrospective analysis

Dependent variable RMSE for included states RMSE for omitted state
Omitting California
 PCR 1 Medicare .174 .177
 PCR 2 Medicaid .186 .287
 PCR 3 Private .194 .339
 PCR 4 Self-Pay .226 .608
 PCR 5 Other .224 .702
Omitting Wisconsin
 PCR 1 Medicare .166 .269
 PCR 2 Medicaid .191 .203
 PCR 3 Private .180 .454
 PCR 4 Self-Pay .236 .452
 PCR 5 Other .271 .594
Omitting Florida
 PCR 1 Medicare .173 .269
 PCR 2 Medicaid .196 .116
 PCR 3 Private .210 .311
 PCR 4 Self-Pay .231 .538
 PCR 5 Other .273 .900
  1. Notes: RMSE, root mean squared error