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OCR for page R7
CONTENTS
FOREW ORD
INTRODUCT ION
STUDY METHODS
ANALYS IS
SUMMARY AND RECOMMENDAT IONS
APPENDICES
1X
1
5
23
61
A. Bib 1 iography 71
B. Sample Letter to Hospital Administrators 73
C. Diagnostic Codes Included as Components of the
Sample of Medicare Records 75
D. IOM Re-abstracting Form, General Instructions for
F ie id Team, and Spec i f ic Ins true t ions f or IOM
Re - ab s t r ac t ing Form 85
E. Informal Checklist 105
F. Reliability of Field Work 107
G. Percent of Abstracts with no Discrepancy for each
Diagnosis Included as a Component of the Sample
of Med ic are Records 115
H. Net and Gross Difference Rates in Designation
0 f Pr inc i pal D iagno s i s ~ Ba s ed on Four-Dig i t
Comparisons of Specific Diagnoses) 121
General Comparison of Assessments of the
Reliability of Medicare Records Maintained by the
Health Care Financing Administration and Hospital
Discharge Abstracts Compiled by Private Abstract
Serv ices
@ .
V11
125
OCR for page R8
J. Comparison of the Reliability of HCFA Medicare
Records and Private Abstract Service Medicare
Ab s t r ac t s to r Se 1 ec ted Di agno se s Common to ho th
Stud ies 127
K. Standard Errors and Confidence Interval s for
Statistics Based on Medicare Data 129
Standard Errors and Confidence Interval s for
Statistics Based on Data from Private Abstracting
Services 132
M. Selected Examples of Principal Procedures not
Li sted in CPT, as Determined by the IOM Field
Team Members 134
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