Summary of personal payments from pharmaceutical companies to board-certified gastroenterologists by the Japanese Society of Gastroenterology between 2016 and 2019
| Variables | Values | |
| Total | ||
| Payment values, US$ | 89 151 253 | |
| Contracts, n | 134 249 | |
| Companies, n | 84 | |
| Gastroenterologists with payments, n (%) | 11 623 (52.8) | |
| Payment distribution | ||
| Physicians with specific payments, n (%) | ||
| No payment | 10 395 (47.2) | |
| US$1–US$500 | 2036 (9.3) | |
| US$501–US$1000 | 2389 (10.9) | |
| US$1,001–US$5000 | 4404 (20.0) | |
| US$5,001–US$10 000 | 1164 (5.3) | |
| US$10,001–US$50 000 | 1287 (5.8) | |
| US$50,001–US$100 000 | 208 (0.94) | |
| US$100,001–US$200 000 | 86 (0.39) | |
| US$200 001– | 49 (0.22) | |
| Gini index | 0.889 | |
| Payment category | ||
| Lecturing | ||
| Payment value, US$ (%) | 77 940 406 (87.4) | |
| Contracts, n (%) | 119 910 (89.3) | |
| Physicians, n (%) | 11 344 (51.5) | |
| Consulting | ||
| Payment value, US$ (%) | 7 195 684 (8.1) | |
| Contracts, n (%) | 8533 (6.4) | |
| Physicians, n (%) | 2220 (10.1) | |
| Writing | ||
| Payment value, US$ (%) | 3 067 693 (3.4) | |
| Contracts, n (%) | 4642 (0.9) | |
| Physicians, n (%) | 1686 (7.7) | |
| Other | ||
| Payment value, US$ (%) | 947 470 (1.1) | |
| Contracts, n (%) | 1164 (0.9) | |
| Physicians, n (%) | 682 (3.1) | |
| Per gastroenterologist | Per gastroenterologist with payments | |
| Average (SD) | ||
| Payment values, US$ | 4049 (19 875) | 7670 (26 842) |
| Contracts, n | 6.1 (20.6) | 11.6 (27.2) |
| Companies, n | 2.3 (3.9) | 4.4 (4.4) |
| Median (IQR) | ||
| Payment values, US$ | 297 (0‒1715) | 1533 (582‒4781) |
| Contracts, n | 1.0 (0.0‒4.0) | 4.0 (2.0‒10.0) |
| Companies, n | 1.0 (0.0‒3.0) | 3.0 (1.0‒6.0) |
| Range | ||
| Payment values, US$ | 51‒555 553 | |
| Contracts, n | 1.0‒481.0 | |
| Companies, n | 1.0‒36.0 | |