This site is intended for healthcare professionals

account_circleSign in
Go to /sign-in page

You can view 5 more pages without signing in

Absolute benefit increase (ABI)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Absolute Benefit Increase (ABI)

  • this measure is used when the treatment is likely to increase the number of beneficial events
  • calculated as EER-CER (expressed as a percentage)

Relative Benefit Increase (RBI)

  • ABI/CER

Key:

  • Experimental Event Rate (EER) - This is the event rate in the group given active treatment - this is expressed as a percentage. It is calculated as the number of events number by the number of patients receiving active treatment
  • Control Event Rate (CER) - This is the event rate in the group given active placebo - this is expressed as a percentage. It is calculated as the number of events number by the number of patients receiving placebo.

Reference:

  1. Doctor (March 22nd 2005). Ready Reckoner.

Related pages

Create an account to add page annotations

Create a free account

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.