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. Author manuscript; available in PMC: 2014 Dec 11.
Published in final edited form as: Med Care. 2014 Sep;52(9):790–795. doi: 10.1097/MLR.0000000000000175

Figure 1. Quarterly probability of Medicaid beneficiaries and Uninsured patients receiving the selected musculoskeletal procedures.

Figure 1

Red/blue square plots: Observed proportion of Medicaid/Uninsured patients respectively, with the intervention.

Red/blue “x” plots: Expected proportion of Medicaid/Uninsured patients respectively if the intervention had not occurred.

Dashed line: Time of intervention.

At quarter 35 (roughly 5 years after the intervention), there were approximately 5% (red double arrow) more Medicaid patients treated than would have been if the intervention had not occurred. At the same time, there were approximately 2% less uninsured patients than would have been without the intervention (blue double arrow).