Table 2 Trend of personal payments from pharmaceutical companies to the hematology specialists board-certified by the Japanese Society of Hematology between 2016 and 2019.

From: Pharmaceutical payments to Japanese certified hematologists: a retrospective analysis of personal payments from pharmaceutical companies between 2016 and 2019

Variables

2016

2017

2018

2019

Relative yearly change ratio (95% CI)

P value

Four years combined total

All pharmaceutical companies

       

Total payments, $ (Â¥)

7,700,346

(839,337,686)

8,266,798

(901,080,935)

10,045,073

(1,094,912,919)

10,279,218

(1,120,434,752)

‒

‒

35,949,597

(3,955,766,292)

Average payments (SD), $

4259 (9291)

4918 (10,677)

5306 (11,403)

5574 (11,688)

1.112 (1.091‒1.134)

<0.001

13,411 (34,856)

Median payments (IQR), $

1241 (511‒3442)

1343 (525‒4087)

1504 (525‒4628)

1629 (613‒4839)

2471 (851‒9677)

Payment range, $

46‒106,834

46‒167,828

46‒148,942

52‒140,947

‒

‒

46‒528,038

Physicians with specific payments, n (%)

       

Any payments

1808 (43.2)

1681 (40.2)

1893 (45.3)

1844 (44.1)

1.018 (1.006‒1.030)

0.003

2706 (64.7)

Payments >$500

1444 (34.5)

1373 (32.8)

1577 (37.7)

1570 (37.5)

1.040 (1.027‒1.054)

<0.001

2374 (56.8)

Payments >$1000

1024 (24.5)

998 (23.9)

1178 (28.2)

1159 (27.7)

1.055 (1.039‒1.071)

<0.001

1945 (46.5)

Payments >$5000

331 (7.9)

360 (8.6)

454 (10.9)

446 (10.7)

1.117 (1.088‒1.146)

<0.001

975 (23.3)

Payments >$10,000

187 (4.5)

208 (5.0)

239 (5.7)

253 (6.0)

1.109 (1.071‒1.149)

<0.001

660 (15.8)

Payments >$50,000

15 (0.36)

20 (0.5)

26 (0.6)

24 (0.57)

1.169 (1.033‒1.323)

0.014

172 (4.1)

Payments >$100,000

2 (0.048)

2 (0.048)

4 (0.096)

5 (0.12)

1.420 (0.940‒2.147)

0.096

75 (1.8)

Gini index

0.876

0.885

0.870

0.872

‒

‒

0.856

Pharmaceutical companies with 4-years payment dataa

       

Total payments, $ (Â¥)

7,700,346

(838,940,102)

8,266,798

(884,814,326)

10,045,073

(1,091,772,525)

10,142,157

(11,05,495,102)

‒

‒

35,972,679

(3,921,022,055)

Average payments (SD), $

4259 (9291)

4918 (10,677)

5306 (11,403)

5536 (11,557)

1.112 (1.091‒1.134)

<0.001

13,333 (34,685)

Median payments (IQR), $

1241 (511‒3442)

1343 (525‒4087)

1504 (523‒4628)

1633 (613‒4760)

2470 (851‒9500)

Payment range, $

46‒106,834

46‒167,828

0‒148,942

0‒137,882

‒

‒

46‒528,038

Physicians with specific payments, n (%)

       

Any payments

1808 (43.2)

1681 (40.2)

1893 (45.3)

1844 (44.1)

1.018 (1.006‒1.030)

0.003

2698 (64.5)

Payments >$500

1444 (34.5)

1373 (32.8)

1577 (37.7)

1570 (37.5)

1.040 (1.027‒1.054)

<0.001

2383 (57.0)

Payments >$1000

1024 (24.5)

998 (23.9)

1178 (28.2)

1159 (27.7)

1.055 (1.039‒1.071)

<0.001

1938 (46.3)

Payments >$5000

331 (7.9)

360 (8.6)

454 (10.9)

446 (10.7)

1.117 (1.088‒1.146)

<0.001

973 (23.3)

Payments >$10,000

187 (4.5)

208 (4.8)

239 (5.7)

253 (6.0)

1.109 (1.071‒1.149)

<0.001

659 (15.8)

Payments >$50,000

15 (0.36)

20 (0.48)

26 (0.62)

24 (0.57)

1.169 (1.033‒1.323)

0.014

174 (4.2)

Payments >$100,000

2 (0.048)

2 (0.048)

4 (0.096)

5 (0.12)

1.420 (0.940‒2.147)

0.096

77 (1.8)

Gini index

0.876

0.885

0.870

0.872

‒

‒

0.857

  1. SD Standard deviation, IQR interquartile range, 95% CI 95% confidence interval.
  2. a7 pharmaceutical companies were excluded because the companies did not disclose or we could not collect the 4 years payment data between 2016 and 2019.
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