Association between disclosed conflicts of interest (COI) and other forms of COI (ie, inclusion of primary studies in reviews, researcher allegiance) and spin in review conclusions in all 95 reviews
Review with spin in conclusion | Review without spin in conclusion | OR (95% CI) | |
---|---|---|---|
Inclusion of own primary study | 13 | 21 | 2.08 (0.83 to 5.18) |
No inclusion of own primary study | 14 | 47 | |
Researcher allegiance | 7 | 8 | 2.63 (0.84 to 8.16) |
No researcher allegiance | 20 | 60 | |
COI disclosed | 9 | 16 | 1.63 (0.61 to 4.32) |
No COI disclosed | 18 | 52 | |
Inclusion of own primary study, researcher allegiance and/or COI declared | 16 | 31 | 1.74 (0.70 to 4.29) |
None of the three | 11 | 37 |