Table 7. Number and percentage of paediatric influenza B-associated hospitalizations in Canada reported by IMPACT by age group, seasons 2014–2015 to 2022–2023a.
| Age group (years) |
Influenza season | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2014–2015 | 2015–2016 | 2016–2017 | 2017–2018 | 2018–2019 | 2019–2020 | 2022–2023 | ||||||||
| n | % | n | % | n | % | n | % | n | % | n | % | n | % | |
| <2 | 60 | 30% | 138 | 30% | 31 | 24% | 101 | 25% | 32 | 25% | 199 | 33% | 50 | 28% |
| 2–4 | 53 | 26% | 118 | 26% | 32 | 25% | 92 | 23% | 44 | 35% | 161 | 26% | 51 | 28% |
| 5–9 | 54 | 27% | 145 | 31% | 39 | 30% | 127 | 31% | 34 | 27% | 162 | 27% | 58 | 32% |
| 10–16 | 35 | 17% | 60 | 13% | 28 | 22% | 84 | 21% | 17 | 13% | 89 | 15% | 21 | 12% |
| Total | 202 | 100% | 461 | 100% | 130 | 100% | 404 | 100% | 127 | 100% | 611 | 100% | 180 | 100% |
Abbreviation: IMPACT, Canadian Immunization Monitoring Program, ACTive
a The 2020–2021 and 2021–2022 seasons were excluded from Table 7 comparison as no influenza hospitalizations and <5 influenza hospitalizations were reported, respectively