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 capita | 95% CI | p 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 |