b'CARES Annual Report 2020 | 41In summary: Public location of arrest decreased from 17.4% to 11.4% over the period from February to April, returning to pre-pandemic levels in June and decreasing once again in November during the second major surge in deaths. The proportion of presenting shockable cases followed a similar trend, showing a significant decrease in April and a second dip in November.Bystander CPR remained relatively constant throughout the year, but varied by arrest location. Bystander CPR in residential settings remained static (range: 38.441.2%). In contrast, bystander CPR in public locations decreased significantly from 47.4% in February to 35.7% in April. While the public bCPR rate rebounded to 45.3% in June, it remained below pre-pandemic levels for the remainder of the year. Public AED use decreased from 13.8% to 6.3% during the initial lockdown period, also remaining below pre-pandemic levels for the remainder of the year. Field Termination of Resuscitation (TOR) increased significantly from 37.5% in January to 49.7% in April, with the sharpest increase occurring between March and April. While the TOR rate decreased to 41.9% by June, it remained elevated compared to pre-pandemic levels, showing a more gradual increase during the second surge in late fall.Figure 28. Trends in key OHCA indicators, 2020.'