Chapter 8. Categorical Variables: Risk Statistics

  1. Jennifer Peat1 and
  2. Belinda Barton2

Published Online: 14 JAN 2008

DOI: 10.1002/9780470755945.ch8

Medical Statistics: A Guide to Data Analysis and Critical Appraisal

Medical Statistics: A Guide to Data Analysis and Critical Appraisal

How to Cite

Peat, J. and Barton, B. (2005) Categorical Variables: Risk Statistics, in Medical Statistics: A Guide to Data Analysis and Critical Appraisal, Blackwell Publishing Inc., Malden, Massachusetts, USA. doi: 10.1002/9780470755945.ch8

Author Information

  1. 1

    Associate Professor, Department of Paediatrics and Child Health, University of Sydney and Senior Hospital Statistician, Clinical Epidemiology Unit, Children's Hospital at Westmead, Sydney, Australia

  2. 2

    Head of Children's Hospital Education Research Institute (CHERI) and Psychologist, Neurogenetics Research Unit, The Children's Hospital at Westmead, Sydney, Australia

Publication History

  1. Published Online: 14 JAN 2008
  2. Published Print: 1 JAN 2005

ISBN Information

Print ISBN: 9780727918123

Online ISBN: 9780470755945

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Keywords:

  • risk statistics;
  • disease;
  • multivariate analyses;
  • treatment;
  • compute

Summary

This chapter contains section titled:

  • Coding

  • Odds ratio vs relative risk

  • Odds ratio

  • Research question

  • Reporting the results

  • Protective odds ratios

  • Adjusting for inter-relationships between risk factors

  • Binary logistic regression

  • Research question

  • Computing confidence intervals from logistic regression output

  • Reporting the results

  • Plotting the results in a figure

  • Relative risk

  • Number needed to be exposed for one additional person to be harmed

  • Notes for critical appraisal