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Table 1 Survey responses used in initial sampling of chief investigators (CIs) for interviews and comparison of responses for interview subsample and survey sample

From: A little more conversation please? Qualitative study of researchers’ and patients’ interview accounts of training for patient and public involvement in clinical trials

Question 1: In general, what is your personal view on patient and public involvement (PPI)? CIs who were interviewed n(%) Response distribution within CI survey n(%)
PPI should always be included in a research study 12 (57) 42 (52)
PPI can be beneficial but is not always necessary 8 (38) 35 (43)
I am not convinced of the benefits of PPI 1 (5) 4 (5)
Question 2*: What motivated you to include PPI in your trial?   
I think including PPI is the right thing to do 15 (76) 51 (63)
I have previous experience of the benefits of PPI 12 (57) 45 (56)
PPI was a requirement for research funding 8 (38) 38 (47)
A PPI contributor offered their help 1 (5) 4 (5)
Other 2 (10) 9 (11)
Question 3*: Which PPI contributor/s did you involve?   
Patient 14 (67) 51 (63)
Carer 2 (10) 14 (17)
Parent 2 (10) 13 (16)
Charity member 10 (48) 24 (30)
Medical staff 4 (19) 11 (14)
Other 3 (14) 10,
  1. *CIs could provide more than one response to questions 2 and 3.