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Table 4 Interaction effects of period (2014 vs. 2017) and physician specialty (orthopedic vs. non-orthopedic surgeons) on median value of payments (US dollars), 2014 and 2017

From: Impact of US industry payment disclosure laws on payments to surgeons: a natural experiment

 % Change per capita95% CIp value
General payment: any− 8.9%– 9.5%, − 8.4%< 0.001
General payment: food and beverage− 2.9%− 3.5%, − 2.3%< 0.001
General payment: other sources− 21.3%− 22.3%, − 20.3%< 0.001
Research payment− 13.6%− 28.5%, 4.6%0.13
  1. Source: Open payments program data from the Centers for Medicare and Medicaid Services