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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: Mayo Clin Proc. 2016 Jan;91(1):84–96. doi: 10.1016/j.mayocp.2015.10.016

Figure 1.

Figure 1

Figure 1

Industry payments to allopathic and osteopathic physicians by specialty, August 1, 2013 to December 31, 2013

a. Total value of payments by form of payment* and proportion of physicians receiving payments†

b. Mean and median per-physician value# of general industry payments

Abbreviations: USD=2013 United States Dollars; ROI=Return on investment

Data include payments to identified physicians in allopathic and osteopathic specialties. Form of payment is the modality used to transfer payment, including: cash or cash equivalent (‘cash’); in-kind items and services (‘in-kind’); dividend, profit or other return on investment (‘ROI’); or stock, stock option or other ownership interest (‘ownership interest’)

*The proportion of payments in each form of payment category was significantly different across specialties within each type (Pearson's chi-square test, all P < .001).

†The proportion of physicians receiving payment was significantly different across specialties within each type (Pearson's chi-squared test, all P < .001).

#The per-physician value of general payments was significantly different across specialties within each type (Kruskal-Wallis test, all P < .001).