Table 1 Studies reporting PPI in the publications using the GRIPP2-SF headings, with sections 6–8 added by the authors. (A tick represents when PPI was reported. N/A represents when a publication didn’t include a section heading, e.g. discussion and protocol publications *)

From: Reporting on patient and public involvement (PPI) in research publications: using the GRIPP2 checklists with lay co-researchers