Figure 2. Incidence rate ratios (IRR) for census
tract-level factors included in the regression models for
non-institutional cases (lighter green, on left) and non-institutional
deaths (darker green, on right) by phase of the pandemic in
Massachusetts (Phase 1: March-June 2020, Phase 2: October 2020 –
February 2021). Non-institutional cases and deaths are defined as
confirmed COVID-19 cases and deaths geolocated to an address not
affiliated with a long-term care facility, prison, or shelter.