Fig. 4

Changepoints in daily ED visits, total weekly mental health diagnoses, total weekly crisis calls, and total weekly police responses from March 5 to September 5, 2020. Changepoints indicate significant changes in mean and variance, as calculated by the PELT method. Changepoints are denoted by dashed vertical lines and segment means are denoted by horizontal lines. The shaded areas indicate the periods of lockdown (red) and diminishing restrictions (green)