This figure includes data for all mental health (A), anxiety disorders (B), and depressive 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 1 in the Supplement).