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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: Am J Manag Care. 2016 Jan;22(1):41–48.

Figure 2. Monthly Changes in Antipsychotic Use Before and After Generic Risperidone Introduction by SGA Drug Use Patterns.

Figure 2

PDC indicates proportion of days covered; SGA, second-generation antipsychotic.

This figure displays the adjusted monthly change in antipsychotic proportion of days covered relative to June 2008, the month prior to generic risperidone introduction, estimated using fixed effect (within-person) linear models and adjusted for time changing covariates (risk score and tier 1 and tier 2 co-payment differential); time stable covariates drop out of the model.

Bars indicate 95% confidence intervals.