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Table 3 Summary of responses to the questionnaire on reviewers' experience of using QUADAS

From: Evaluation of QUADAS, a tool for the quality assessment of diagnostic accuracy studies

Reviewer Number Coverage? Omit items? Add items? Modify item? Easy to understand? Scoring? Different scoring? Time to complete (minutes) Inter-rater reliability? Coverage* Ease of use* Clarity of instruction* Validity* Use again?*
1 + - + - + + - 30–60 - 5 3 5 5 +
2 + - - + + + - <10 - 4 4 3 4 +
3 + + - - + + - <10 - 4 4 5 3 +
4 + - - - + + - 30–60 - 4 4 4 4 +
5 + - - - + + - 15–30 - 5 4 5 5 +
6 + - - - + + - 15–30 - 5 3 4 4 +
7 + - - - + - - 15–30 + 4 4 2 2 +
8 + - - - + - - 15–30 + 4 4 3 3 +
9 - - + - + + + >60 - 4 5 5 4 +
10 + - - - + + - <10 - 5 5 5 5 +
11 + - + - + + - 15–30 - 4 3 4 3 +
12 - - - - + + - 15–30 - 5 3 5 3 +
13 + + + - - - - 10–15 - 4 3 3 5 +
14 + + - - + + - 10–15 - 4 4 4 4 +
15 + - - - + + - 10–15 - 5 4 4 4 +
16 + - - - + + - 10–15 - 4 3 4 4 +
17 + - - - + + - <10 - 4 4 4 4 +
18 + - - - + + - <10 - 5 5 5 3 +
19 + - - - + + - 10–15 - 4 4 4 4 +
20 + - - - + + - 15–30 - 5 4 5 4 +
  1. *Each of these items were rated from 1–5 where 1 is strongly disagree (very poor) and 5 is strongly agree (excellent)