Respondent-driven sampling–adjusted prevalence of COVID-19 testing, cumulative incidence of SARS-CoV-2 infection, and prevalence of first and second dose vaccine uptake among First Nations, Inuit and Métis in Toronto and London, overall city and province as of Dec. 6, 2021
| Variable | Toronto | London | Ontario | |||||
|---|---|---|---|---|---|---|---|---|
| OHC urban FNIM cohort RDS-II estimate (95% CI)* n = 723 | General population n = 2 390 652 | OHC urban FNIM cohort RDS-II estimate (95% CI)* n = 364 | General population n = 345 344 | General population n = 12 214 951 | ||||
| Crude estimate | Age-adjusted estimate† | Crude estimate | Age-adjusted estimate† | Crude estimate | Age-adjusted estimate‡ | |||
| Prevalence of SARS-CoV-2 testing | 54.7 (48.1 to 61.3)§ | 44.0 | 45.5 | 44.5 (36.0 to 53.1) | 43.9 | 46.0 | 43.3 | 44.4 |
| Incidence of SARS-CoV-2 infection (per 100 000) | 7364 (2882 to 11 847) | 5705.2 | 6067.0 | 7707 (2215 to 13 200) | 2807.6 | 3395.0 | 4071.3 | 4418 |
| Prevalence of first vaccine dose uptake | 64.1 (57.4 to 70.8)§ | 81.5 | 82.0 | 66.6 (58.3 to 74.9)§ | 84.2 | 83.7 | 82.9 | 82.8 |
| Prevalence of second vaccine dose uptake | 58.2 (51.4 to 64.9)§ | 79.4 | 79.7 | 61.5 (52.9 to 70.0)§ | 82.1 | 81.0 | 80.7 | 80.5 |
Note: CI = confidence interval, FNIM = First Nations, Inuit and Métis, OHC = Our Health Counts, RDS = respondent-driven sampling.
↵* All OHC estimates and CIs are adjusted for RDS. We used the RDS package in R software to produce the estimates of RDS-II.
↵† We age-adjusted the estimates for Toronto and London using OHC Toronto First Nations, Inuit and Métis age-distribution estimates and OHC London First Nations, Inuit and Métis age-distribution estimates, respectively, as reference populations.
↵‡ We used OHC Toronto First Nations, Inuit and Métis age-distribution estimates as the reference population for the Ontario age-adjusted estimates.
↵§ Significant difference from local city and province.