Table 1. Prevalence of Author Conflict of Interest Disclosures by Type of Article.
| Author Conflict of Interest Disclosure | ||||||
|---|---|---|---|---|---|---|
| Yes | No | Missing | ||||
| No./Total | % (95% CI)a | No./Total | % (95% CI)a | No./Total | % (95% CI)a | |
| All articles (N = 1002) | 229 | 22.9 (20.3-25.6) | 637 | 63.6 (60.5-66.6) | 136 | 13.6 (11.5-15.9) |
| Primary research articles (n = 682) | 135 | 19.8 (16.9-23.0) | 462 | 67.7 (64.1-71.2) | 85 | 12.5 (10.1-15.2) |
| Drug-focused | 39/124 | 31.5 (23.4-40.4) | 69/124 | 55.6 (46.5-64.6) | 16/124 | 12.9 (7.6-20.1) |
| Device-focused | 27/121 | 22.3 (15.2-30.8) | 75/121 | 62.0 (52.7-70.7) | 19/121 | 15.7 (9.7-23.4) |
| Both | 5/22 | 22.7 (7.8-45.4) | 16/22 | 72.7 (49.8-89.3) | 1/22 | 4.5 (0.1-22.8) |
| Neither | 64/415 | 15.4 (12.1-19.3) | 302/415 | 72.8 (68.3-76.8) | 49/415 | 11.8 (8.9-15.3) |
| Commentaries, editorials, and narrative reviews (n = 290) | 91 | 31.4 (26.1-37.1) | 150 | 51.7 (45.8-57.6) | 49 | 16.9 (12.8-21.7) |
| Systematic reviews and meta-analyses (n = 30) | 3 | 10.0 (2.1-26.5) | 25 | 83.3 (65.3-94.4) | 2 | 6.7 (0.8-22.1) |
a
The 95% CIs were calculated using the Clopper-Pearson exact method.