National Academies Press: OpenBook

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

Chapter: Appendix L Standard Errors and Confidence Intervals for Statistics Based on Data from Private Abstracting Services

« Previous: Appendix K Standard Errors and Confidence Intervals for Statistics Based on Medicare Data
Suggested Citation:"Appendix L Standard Errors and Confidence Intervals for Statistics Based on Data from Private Abstracting Services." Institute of Medicine. 1977. Reliability of Medicare Hospital Discharge Records: Report of a Study. Washington, DC: The National Academies Press. doi: 10.17226/9930.
×
Page 132
Suggested Citation:"Appendix L Standard Errors and Confidence Intervals for Statistics Based on Data from Private Abstracting Services." Institute of Medicine. 1977. Reliability of Medicare Hospital Discharge Records: Report of a Study. Washington, DC: The National Academies Press. doi: 10.17226/9930.
×
Page 133

Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

Appendix L STANDARD ERRORS ANI) CONFIDENCE: INTERVALS FOR STATI STI CS BASIN) ON ~ ~ DATA FROlI PRIVATE- ABSTRACTING - SERVICES ~ - - Polnt Standard Confidence Statistic - - ~ ~ ~ estimate ~ - error ~ ~ interval Percent of abstracts 65 .20 1 . 14 63 . 32-67 .08 with no discrepancy f or princ Opal diag- nos is coded to four- dig its Percent of abstracts 73.20 1.53 70.68-75.72 with no dis crepancy for princ ipal pro- cedu re 132

Agnes is ~ ~ 1 _ _ 133 Append ix L STANDARD ERRORS AND CONFIDENCE INTERVALS FOR NET DIFFERENCE RATES ~ TIMES 100) ~ BASED ~ ON ~ DATA- FROM- PRIVATE ABSTRACTING ~ SERVICES ~ ~ _ ~ Point Standard estimate - - error . . . . . Confidence interval ~ Cerebrovascular 1.07 0.27 0.62-1.52 diseases Chronic ischemic -2.24 0.48 -3.03--1.65 heart disease Acute myocardial 0.86 0.08 0.78-0.94 infarction Diabetes mellitus 0.09 0.33 -0.06-0.24 Carcinoma of the breast -0.10 0.04 -0.17-0.03 End stage renal disease 0.04 0.02 0.01-0.07 Cholelithiasis/ 0.31 0.13 0.10-0.52 cholecyst it is Hernia without -0.02 0.04 -0.09-0.05 obstruction Delivery 0.23 0.05 0.15-0.31 Hypertrophy of tonsils and adenoids -0.01 0.02 -0.04-0.02 Fracture of neck of 0.34 0.12 0.14-0.54 femur Displacement of inter- 0.10 0.06 0.00-0.20 vertebral disc Cataract 0.18 0.10 0.01-0.35 Neuroses 0.09 0.13 -0.12-0.30 d

Next: Appendix M Selected Examples of Principal Procedures not Listed in CPT, as Determined by the IOM Field Team Members »
Reliability of Medicare Hospital Discharge Records: Report of a Study Get This Book
×
MyNAP members save 10% online.
Login or Register to save!
  1. ×

    Welcome to OpenBook!

    You're looking at OpenBook, NAP.edu's online reading room since 1999. Based on feedback from you, our users, we've made some improvements that make it easier than ever to read thousands of publications on our website.

    Do you want to take a quick tour of the OpenBook's features?

    No Thanks Take a Tour »
  2. ×

    Show this book's table of contents, where you can jump to any chapter by name.

    « Back Next »
  3. ×

    ...or use these buttons to go back to the previous chapter or skip to the next one.

    « Back Next »
  4. ×

    Jump up to the previous page or down to the next one. Also, you can type in a page number and press Enter to go directly to that page in the book.

    « Back Next »
  5. ×

    To search the entire text of this book, type in your search term here and press Enter.

    « Back Next »
  6. ×

    Share a link to this book page on your preferred social network or via email.

    « Back Next »
  7. ×

    View our suggested citation for this chapter.

    « Back Next »
  8. ×

    Ready to take your reading offline? Click here to buy this book in print or download it as a free PDF, if available.

    « Back Next »
Stay Connected!