Home| Prevalence of LTBI (%) | Type of test | Publication year | |
|---|---|---|---|
| Close contacts born in Canada/US 20 | 31.0 | TST (≥5 mm) | 2020 |
| Close contacts born outside Canada/US 20 | 75.6 | TST (≥5 mm) | 2020 |
| First Nations schoolchildren on reserve, routine school screening (at low risk of TB exposure) 119 | BCG in infancy 5.7 no BCG 0.2 |
TST (≥10 mm) | 2011 |
| Kindergarten children, routine school screening, Iqaluit, Nunavut 120 | 11.4 | TST (≥10 mm) | 2019 |
| Government-assisted refugees 121 | 36.0 | TST (≥10 mm) | 2016 |
| Refugees, medium-incidence origin (about 20/100,000) 122 | 9.0 | IGRA | 2018 |
| Migrant children, school-based screening 123 | 22.8 | TST (≥10 mm) | 2010 |
| Refugees, very high-incidence origin (>300/100,000) 124 | 51.0 | IGRA | 2016 |
| Federal inmates 125 | 17.6 | TST (≥10 mm) | 2008 |
| Dialysis patients, routine screening 126 | 11.5 | IGRA | 2020 |
| Hematologic cancer patients, routine screening 127 | 8.2 | TST (≥10 mm) | 2020 |
Abbreviations: LTBI, latent tuberculosis infection; TST, tuberculin skin tests; TB, tuberculosis; BCG, Bacille Calmette-Guerin; IGRA interferon-gamma release assay
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