Skip to main content

Table 2 Delphi participants’ demographics

From: Choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial – the development of the DELTA2 guidance

Question

Response

Count (percentage of participants)

Your role in RCTs (select all that apply):

Involved in analysis of RCTs

42 (61%)

Involved in RCT design (Collaborating Clinician)

7 (10%)

Involved in RCT design (Lead/Chief Investigator)

23 (33%)

Involved in RCT design (Statistician/Methodologist)

49 (71%)

Other (Please specify)

16 (23%)

Serves on a funding panel/board which evaluates applications for RCT funding

43 (62%)

Primary RCT related affiliation:

Academic institution

57 (83%)

Contract research organisation

2 (3%)

Funder of RCTs (e.g. NIHR in the UK or NIH in the US)

5 (7%)

Healthcare provider (e.g. NHS in the UK)

3 (4%)

Pharmaceutical/medical device company

2 (3%)

Where do you work? If you work across Europe or Internationally please choose the category in which the majority of your work is performed

Canada

3 (4%)

Ireland

1 (1%)

Other European Country

1 (1%)

UK

55 (80%)

US

9 (13%)

Australasia

0 (0%)

Other

0 (0%)

  1. NHS National Health Service, NIH National Institutes of Health, NIHR National Institute for Health Research, RCT randomised controlled study