Childhood‐onset type 1 diabetes in Western Australia: An update on incidence and temporal trends from 2001 to 2022
Authors' conclusion
The incidence of type 1 diabetes in 0-14 year old Western Australian children continues to increase in the oldest age group. Longer term monitoring of the incidence during the COVID-19 pandemic is needed to determine its impact on this globally unique population which experienced a delayed start to the pandemic with severe containment measures remaining in place until January 2022.
Study context
- Population
- Children aged 0–14 years newly diagnosed with T1D in Western Australia, 1 January 2001 to 31 December 2022, Western Australian Children's Diabetes Database1,214 boys · 1,097 girls
- Participants
- 2,311 children
- Outcome
- Incidence and incidence trends of childhood-onset T1D
- Follow-up
- 2001-2022
Methodological detailspopulation-based registry, Poisson regression
- Population-based registry
- Poisson regression
Main finding
As reported in the abstract
Overall mean annual incidence
22.9 per 100,000 person-years (95% CI: 22.0, 23.9)
Observational data: associations, not effects.
Further findings
Linear trend in incidence, 10-14 year olds (boys and girls combined)
- Increase per year
- 1.2%
- IRR
- 1.012 (95% CI: 1.002, 1.022)
- Significant linear increasing trend only in 10-14 year olds
Incidence pre- vs post-COVID-19 pandemic
- No significant difference between pre- and post-pandemic period
- Adjusted for sex and age group
Original publication
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