All-Purpose 2x2 Table Analyser

or The CATmaker's Scratching Post.

  1. Type the appropriate numbers in the white boxes (you can TAB between boxes to save using the mouse);
  2. Click (or un-click) the sets of calculations you want to do (Rx for therapy, Dx for diagnosis and H for harm/aetiology);
  3. Click CALC;
  4. Click CLEAR to, er, clear the values and start again

Please note that you will need the Shockwave plug-in to view this interactive image. If you do not have Shockwave installed, you will be presented with the opportunity to download it. We recommend you do so, as this adds functionality to your browser.

Page last edited: 08 January 2009