This figure includes data for bipolar disorders (A), schizophrenia spectrum disorders (B), and trauma- and stressor-related disorders (C). Shaded areas of the graph depict time periods included in analytic index or comparison periods: a COVID-19 case peak comparison period (December 27, 2020-January 23, 2021), the period immediately after a COVID-19 case peak index period (February 14-March 13, 2021), a COVID-19 pandemic comparison period with low circulation of the Delta variant (the pre-Delta period; April 18-May 15, 2021), and a COVID-19 pandemic index period with high circulation of the Delta variant (the Delta period; July 18-August 14, 2021). These windows were used in the temporal comparisons displayed in Table 2 (eAppendix 2 in the Supplement).