Study database variables
| Journal title | Author affiliation with patentee, with known sponsor or non-profit funding |
| Journal subject category | |
| Journal year | Author affiliation with patentee, with unknown sponsor Authors affiliated with a consultation company |
| Block (6-year period) number | |
| Study methodology employed | Number of coauthors with affiliation with consultation companies |
| Study comparator | |
| Study outcome | Author affiliated with a consultation company, with sponsor known |
| Declaration of potential conflict of interest | |
| Funding source | Author affiliated with a consultation company, with sponsor unknown |
| Non-profit authorship | |
| Number of authors with affiliation with patentee, including all company authors | Author affiliation with sponsor and/or source of drug supplies |