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

 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

 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

 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