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. Author manuscript; available in PMC: 2024 May 1.
Published in final edited form as: J Public Econ. 2023 Mar 17;221:104860. doi: 10.1016/j.jpubeco.2023.104860

Figure 5 – Mean Utilization for Advertised Drug Classes vs. Non-Advertised Drug Classes, for Non-Elderly.

Figure 5 –

Notes: Sample means from claims (mean number of total prescriptions purchased, ages 40–60) in above median elderly share markets relative to below median elderly share markets. The top two lines (black and red) are for the top 10 advertised drug classes and the bottom two lines (green and orange) are for the top 10 non-advertised drug classes (see Appendix Figure B.6 for full list of drug classes included). The vertical line represents the implementation date of Medicare Part D. We use the first two digits of the GPI code (available from IMS Health) to identify major classes of drugs.