Type 1 diabetes

Type 1 diabetes incidence in Scotland between 2006 and 2019

Diabet MedPublished Repeated annual cross-sectional studies

Authors' conclusion

Incidence of type 1 diabetes varies by age, sex and socio-economic status and has remained approximately stable from 2006 to 2019 in Scotland.

Study context

Population
People with incident T1D in Scotland, 2006–2019, Scottish Care Information-Diabetes Collaboration (SCI-DC) register; median (IQR) age 24.1 (12.3–42.4) years, 56% menincident T1D
Participants
14,564 people
Exposure
Scottish Index of Multiple Deprivation (SIMD) Q5 vs Q1
Outcome
T1D incidence, annual, stratified by age and sex
Follow-up
2006–2019
Methodological detailspopulation-based register, joinpoint regression, quasi-Poisson regression
  • Population-based register
  • Joinpoint regression
  • quasi-Poisson regression

Main finding

As reported in the abstract

T1D incidence

Incidence higher in men than women overall (men vs women, per 100,000)

around 22 and 17 per 100,000

Incidence in under 15 year olds, both sexes (higher than other age groups)

≈40 per 100,000

Observational data: associations, not effects.

Further findings

OutcomeIRR (95% CI)
T1D incidence by SIMD quintile, 15-29 year olds0.52 (0.47–0.58)
T1D incidence by SIMD quintile, 30-49 year olds0.68 (0.61–0.76)
T1D incidence by SIMD quintile, 50+ year olds0.53 (0.46–0.61)
T1D incidence by SIMD quintile, under 15 year oldsNo inverse association1.02 (0.92–1.12)

Original publication

Type 1 diabetes incidence in Scotland between 2006 and 2019. Diabet Med. Published 25 February 2023. doi:10.1111/dme.15069

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