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Table 1 Top 10 most frequent responses about types of problems experienced when using eligibility criteriaa

From: Clinical trial recruiters’ experiences working with trial eligibility criteria: results of an exploratory, cross-sectional, online survey in the UK

Rank

Comment type

Category (Clarity, Feasibility, Suitability, Other)

n

Proportion of all comments (n = 671)

1

Criteria generally ambiguous or unclear

Clarity

297

44%

2

Tests required in a short timeframe (i.e. difficult to achieve)

Feasibility

134

20%

3

Criteria too restrictive

Suitability

41

6%

4

Required tests not standardly done locally

Feasibility

40

6%

5

Hard to gather required data in time available (e.g. information hard to locate, stored in several places)

Feasibility

22

3%

6

Required timelines unclear

Clarity

20

3%

=7

Difficulty implementing subjective eligibility criteria

Clarity

19

3%

=7

Problems with wording, phrases or terminology used

Clarity

19

3%

9

Criteria too complex

Clarity

18

3%

10

Unclear which previous treatments allowed

Clarity

17

3%

  1. a Excluding comments that could not be categorised as the meaning was not totally clear, n = 33