Table 1

Summary of research on the interaction between IIPs and doctors.

MethodLiterature
Primary research
 Survey or semistructured interview of patients178–24
 Survey or semistructured interview of doctors1325–37
 Survey or semistructured interview of doctors and patients338–40
Observational study (plus interviews)26 41
Novel methodology242 43
Literature review729 44–49
Opinion piece550–54