1. What is Patient and Public Involvement?

Research being carried out ‘with’ or ‘by’ members of the public, rather than ‘to’, ‘about’ or ‘for’ them.

‘Public means patients and their relatives, as well as members of the general public.

Patient and Public Involvement is often referred to as ‘PPI’.

Patient and Public Involvement and Engagement is referred to as ‘PPIE’.


2. When should I use PPI?

PPI can be used at any stage of the ‘research cycle’

INVOLVE Research Cycle


See our other FAQs for advice on how to do PPI at different stages of the research cycle, and other important things to consider.