Dataset Information

Prevalence and incidence of type 1 diabetes in Ireland: a retrospective cross-sectional study using a national pharmacy claims data from 2016.

ABSTRACT:

Objectives

The aim of this study is to estimate the prevalence and incidence of type 1 diabetes in the Irish population using a national pharmacy claims database in the absence of a national diabetes register.

Design

National, population-based, retrospective, cross-sectional study.

Setting

Community care with data available through the Health Service Executive Pharmacy Claims Reimbursement Scheme from 2011 to 2016.

Participants

Individuals with type 1 diabetes were identified by coprescription of insulin and glucometer test strips without any prolonged course (>12 months) of oral hypoglycaemic agents prior to commencing insulin. Those claiming prescriptions for long-acting insulin only, without any prandial insulin, were excluded from the analysis. Incidence was estimated based on the first claim for insulin in 2016, with no insulin use in the preceding 12 months.

Main outcome measures

Prevalence of type 1 diabetes in children (<18 years) and adults (?18 years); incidence of type 1 diabetes in children (?14 years) and adolescents and adults (>14 years).

Results

There were 20?081 prevalent cases of type 1 diabetes in 2016. The crude prevalence was 0.42% (95% CI 0.42% to 0.43%). Most prevalent cases (n=17?053, 85%) were in adults with a prevalence of 0.48% (95% CI 0.47% to 0.48%). There were 1527 new cases of type 1 diabetes in 2016, giving an incidence rate of 32 per 100?000 population/year (95%?CI 30.5 to 33.7). There was a significant positive linear trend for age, for prevalence (p<0.0001) and incidence (p=0.014). The prevalence and incidence were 1.2-fold and 1.3-fold higher in men than women, respectively. Significant variations in prevalence (p<0.0001) and incidence (p<0.001) between the different geographical regions were observed.

Conclusions

This study provides epidemiological estimates of type 1 diabetes across age groups in Ireland, with the majority of prevalent cases in adults. Establishing a national diabetes register is essential to enable updated epidemiological estimates of diabetes and for planning of services in Ireland.

SUBMITTER: Gajewska KA

PROVIDER: S-EPMC7245400 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Publications

Prevalence and incidence of type 1 diabetes in Ireland: a retrospective cross-sectional study using a national pharmacy claims data from 2016.

Gajewska Katarzyna Anna KA Biesma Regien R Sreenan Seamus S Bennett Kathleen K

BMJ open 20200419 4

<h4>Objectives</h4>The aim of this study is to estimate the prevalence and incidence of type 1 diabetes in the Irish population using a national pharmacy claims database in the absence of a national diabetes register.<h4>Design</h4>National, population-based, retrospective, cross-sectional study.<h4>Setting</h4>Community care with data available through the Health Service Executive Pharmacy Claims Reimbursement Scheme from 2011 to 2016.<h4>Participants</h4>Individuals with type 1 diabetes were i ...[more]

PMID: 32312725

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Dataset Information

Prevalence and incidence of type 1 diabetes in Ireland: a retrospective cross-sectional study using a national pharmacy claims data from 2016.

Objectives

Design

Setting

Participants

Main outcome measures

Results

Conclusions

Publications

Prevalence and incidence of type 1 diabetes in Ireland: a retrospective cross-sectional study using a national pharmacy claims data from 2016.

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