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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Med Care. 2019 Sep;57(9):710–717. doi: 10.1097/MLR.0000000000001161

Figure 3: Unadjusted, Mean Differences in All-Cause Hospitalization Rate per 1000 Adults Diagnosed with Diabetes for SIM versus Comparison Counties, 2010–2014.

Figure 3:

Notes: SIM funding began on Apr 1, 2013, which included an initial 6-month test period, resulting in the test implementation phase beginning Oct 1, 2013. Because the diagnosed diabetes prevalence data is annual, we modeled the implementation period as beginning Jan 1, 2014. Hospital rate differences were calculated each year by subtracting the mean of the county-level hospitalization rate in the 240 SIM counties from the mean of the county-level hospitalization rate in the 343 comparison counties. The error bars are 95% confidence intervals of the difference in the mean hospitalization rate by year. Apr indicates April; Dec, December; Jan, January; Oct, October; SIM, State Innovation Model

Sources: Authors’ analysis of Centers for Disease Control and Prevention’s county-level estimates and Healthcare Cost and Utilization Project’s State Inpatient Databases