Presence of financial interests, citation of scientific evidence and document length
| Financial ties to industry | % of total (n) | % citing scientific evidence (n)* | Median document length, pages (range) |
| Yes† | 63.2 (79) | 16.5 (13) | 4 (1–30) |
| No | 8 (10) | 10 (1) | 2.5 (1–13) |
| Unknown | 28.8 (36) | 8.3 (3) | 1 (1–7) |
*Including articles in journals or preprints.
†Includes industry, industry associations, mixed associations and any other submitters for which we were able to identify a financial tie to industry.