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. Author manuscript; available in PMC: 2018 Nov 28.
Published in final edited form as: JAMA. 2017 Nov 28;318(20):2011–2018. doi: 10.1001/jama.2017.17653

Figure 2. Simulation of Data to Demonstrate Incorrect Assessment of Hospitalization-level Trends.

Figure 2

National-level trends in the number of coronary artery bypass grafting (CABG) hospitalizations were evaluated using the National Inpatient Sample data from the years 2010 through 2013. Trends were assessed using discharge weights for 2010–2011 that accounted for changes in data structure over time (correct weights), compared to those without this adjustment (incorrect weights).