Skip to main content

Advertisement

Table 2 Investigator characteristics and clinical trial experience

From: Investigator experiences with financial conflicts of interest in clinical trials

Characteristics Respondents (N = 732)
  n (%)
Primary appointment  
   University or academic teaching hospital 684(93)
   Non-academic community-based hospital 27(4)
   Other (e.g. private practice, cancer centre, pharmaceutical) 21(3)
Type of clinical trial  
   Non-industry trials only 240(33)
   Industry trials only 54(7)
   Both non-industry and industry trials 406(55)
   None 28(4)
   Did not answer 4(1)
Number of years of experience in clinical trials  
   ≤ 5 192(26)
   > 5 489(67)
   Not applicable 28(4)
   Did not answer 23(3)
Most senior role in clinical trial  
   Principal investigator for entire trial -(trial PI) 466(64)
   Principal investigator for site, No overall PI experience- (site PI) 177(24)
   Other (No PI or site-PI experience) 56(8)
   Did not answer 33(5)
Intervention(s) studied *  
   Drug therapy 552(75)
   Device/equipment 217(30)
   Diagnostic tests 174(24)
   Surgery/procedure 151(21)
   Education/counselling 139(19)
   Management policy (e.g. specific thresholds for transfusion) 89(12)
   Complementary and alternative medicine 78(11)
   Psychotherapy 37(5)
   Other (e.g. exercise, nutrition, radiation) 113(15)
Trial sites  
   Single 94(13)
   Multiple 252(34)
   Both (single and multiple) 353(48)
   Did not answer 33(5)
Conflict of interest exposure  
   Any 269(37)
Personal only 33(5)
Witness of colleague 184(25)
Both personal and witness of colleague 52(7)
   None 402(55)
   Did not answer 61(8)
  1. Note:
  2. * The sum of response options is greater than 100% because survey respondents may have investigated more than one intervention type in different trials.