Description of outbreaks of SARS-CoV-2 infection and related deaths in retirement homes in Ontario
| Characteristic | No. (%)* of homes with outbreaks of SARS-CoV-2 infection |
|---|---|
| By retirement home | n = 770 |
| ≥ 1 outbreaks | 273 (35.5) |
| Total outbreaks | n = 367 |
| No. of outbreaks involving both residents and staff | 148 (40.3) |
| No. of outbreaks involving residents only | 75 (20.4) |
| No. of outbreaks involving staff only | 144 (39.2) |
| Median no. of cases per facility with a resident infection (IQR) | 4 (1–15) |
| No. of homes with ≥ 1 COVID-19 deaths, n | 87 |
| Median proportion of residents who died per facility with a resident death, % (IQR) | 2.9 (1.5–7.6) |
| Median no. of deaths per facility with 1 or more deaths (IQR) | 3 (1–4) |
| By SARS-CoV-2 infection | n = 3045 |
| No. of staff infections | 1101 (36.2) |
| No. of resident infections | 1944 (63.8) |
| Cumulative incidence of COVID-19 resident cases (per thousand RH residents) | 34.4 |
| Median proportion of residents infected per facility with a resident infection, % (IQR) | 4.9 (1.8–19.7) |
| No. of deaths from COVID-19 | 336 |
| COVID-19 death rate (per thousand RH residents) | 5.9 |
| Case fatality rate, % | 17.3 |
Note: IQR = interquartile range, RH = retirement home.
↵* Unless otherwise specified.