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. Author manuscript; available in PMC: 2014 Jun 4.
Published in final edited form as: JAMA. 2013 Dec 4;310(21):2289–2296. doi: 10.1001/jama.2013.281954

Figure 1. Ascertainment of SUD Cases.

Figure 1

A total of 45 581 unique individuals were added to the American Board of Anesthesiology (ABA) data set over the period of study (1975–2009), with 44 612 participating in primary anesthesiology training and an additional 969 participating in only pain or critical care medicine subspecialty training. The substance use disorder (SUD) flag could be set either during or after training. Deceased individuals could have died during or after training. Methods of ascertainment are shown for the 384 individuals who used substances during primary anesthesiology training (ie, not including those who may have used substances during pain or critical care subspecialty training). NDI indicates National Death Index; DANS, Disciplinary Action Notification Service.