Odds Ratio Generator

You can download the free Odds Ratio Generator (version 1.00) here.

Screenshots available here.

The Professional Edition is available from the ClinTools Website at www.clintools.com. The professional version demo will revert to this free version at the end of 30 days.

With both Treatment and Control groups (and for improvement, no change and deterioration), this programme automatically computes:

Event Rates
Relative Risks
Relative Risk Increases
Event Odds
Odds Ratios
Number Needed To Treat
Number needed To Harm

If you use it, please repay the time it took me to make this programme by referencing it appropriately in your manuscripts:

Devilly, G.J. (2005). The Odds Ratio Generator for Windows: Version 1.0 (computer programme). Centre for Neuropsychology, Swinburne University, Australia.

A full help file explaining how to interpret the data and use the programme is available with the Professional Edition. Also available with the professional edition is the ability to select 2 or three possible outcomes (e.g., improved vs not improved; or Improved, No Change, Deteriorated).