Table 2 Direct costs of PPI in the research project

 Meeting preparation

3 h × 4 meetings

 Meeting participation

4 h × 4 meetings

 Writing meeting summary

2 h × 4 meetings

 Meeting preparation^a

1 h × 4 meetings

 Meeting participation^a

4 h × 4 meetings

 Meeting room at Aarhus University, Denmark^b

With av-equipment and suitable arrangement

 Dinner

10 persons × 4 meetings

 Coffee and cake

10 persons × 4 meetings

 Name tags

10 pcs

 Folders

10 pcs

 Copies of slides

10 copies × 4 meetings

 Other

Post-its, pens, notepads