Table 1.
Number (%) of authors (n=1116) whose authorship statement could be matched to ICMJE criteria
| Criteria | No. (%) of authors* |
|---|---|
| Full criteria (1 and 2 and 3) |
174 (15.6) |
| Criteria 1 and 2 not 3 |
431 (38.6) |
| Criteria 1 and 3 not 2 |
26 (2.3) |
| Criteria 2 and 3 not 1 |
17 (1.5) |
| Criterion 1 only: |
355 (31.8) |
| “conception” |
12 (3.4) |
| “design” |
13 (3.7) |
| “acquisition of data” |
161 (45.3) |
| “analysis of data” |
24 (6.8) |
| “interpretation of data” |
9 (2.5) |
| any 2 contributions |
92 (25.9) |
| any 3 contributions |
34 (9.6) |
| any 4 contributions |
9 (2.5) |
| all 5 contributions |
1 (0.3) |
| Criterion 2 only: |
105 (9.4) |
| “drafting of the article” |
45 (42.8) |
| “revising of the article” |
49 (46.7) |
| both contributions |
11 (10.5) |
| Criterion 3 only |
5 (0.5) |
| Statement: “Because I contributed to the submitted article as an author according to the ICMJE criteria” | 3 (0.3) |
*Percentages for contributions specified in an individual authorship criterion are to the total sum of responses within that criterion.