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Reliability of Medicare Hospital Discharge Records: Report of a Study (1977)
Institute of Medicine (IOM)

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. "Appendix L Standard Errors and Confidence Intervals for Statistics Based on Data from Private Abstracting Services." Reliability of Medicare Hospital Discharge Records: Report of a Study. Washington, DC: The National Academies Press, 1977.

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133
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Page
133
Front Matter (R1-R6)
Table of Contents (R7-R8)
Foreword (R9-R10)
Introduction (1-4)
Study Methods (5-22)
Analysis (23-60)
Summary and Recommendations (61-70)
Appendix A Bibliography (71-72)
Appendix B Sample Letter to Hospital Administrators (73-74)
Appendix C Diagnostic Codes Included as Components of the Sample of Medicare Records (75-84)
Appendix D IOM Re-abstracting Form, General Instructions for Field Team, and Specific Instructions for IOM Re-abstracting Form (85-104)
Appendix E Informal Checklist (105-106)
Appendix F Reliability of Field Work (107-114)
Appendix G Percent of Abstracts with no Discrepancy for each Diagnosis Included as a Component of the Sample of Medicare Records (115-120)
Appendix H Net and Gross Difference Rates in Designation of Principal Diagnosis (Based on Four-Digit Comparisons of Specific Diagnosis) (121-124)
Appendix I General Comparison of Assessment of the Reliability of Medicare Records Maintained by the Health Care Financing Administration and Hospital Discharge Abstracts Compiled by Private Abstract Services (125-126)
Appendix J Comparison of the Reliability of HCFA Medicare Records and Private Abstract Service Medicare Abstracts for Selected Diagnoses Common to both Studies (127-128)
Appendix K Standard Errors and Confidence Intervals for Statistics Based on Medicare Data (129-131)
Appendix L Standard Errors and Confidence Intervals for Statistics Based on Data from Private Abstracting Services (132-133)
Appendix M Selected Examples of Principal Procedures not Listed in CPT, as Determined by the IOM Field Team Members (134-134)