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Table 3 Interaction effects of period (2014 vs. 2017) and physician specialty (orthopedic vs. non-orthopedic surgeons) on median number of payments, 2014 and 2017

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

 

Incidence rate ratio

95% CI

P-value

General payment: any

1.09

1.08, 1.09

< 0.001

General payment: food and beverage

1.08

1.07, 1.09

< 0.001

General payment: other sources

1.11

1.09, 1.13

< 0.001

Research payment

–a

–

–

  1. aIndicates that could not be estimated due to a fully null effect
  2. Source: Open payments program data from the Centers for Medicare and Medicaid Services
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