Parviainen A, But A, Sund R, Arffman M, Siljander H, Knip M. Incidence of Type 1 Diabetes in Relation to Exposure to Rotavirus Infections in Pre- and Postvaccine Birth Cohorts in Finland.
Diabetes Care 2024;
47:97-100. [PMID:
37861431 DOI:
10.2337/dc23-1203]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/02/2023] [Indexed: 10/21/2023]
Abstract
OBJECTIVE
To explore the incidence of type 1 diabetes in children in relation to exposure to rotavirus infections.
RESEARCH DESIGN AND METHODS
A nationwide register-based ecological study on the 1995-2015 birth cohorts in Finland compared those born before and after the national implementation of the rotavirus vaccine in 2009.
RESULTS
When the prevaccine 2001-2005 birth cohorts were compared with the postvaccine birth cohorts, the number of children exposed to rotavirus infection by the age of 5 years decreased from 2,522 per 100,000 children (2.5%) to 171 per 100,000 children (0.2%), while the incidence of type 1 diabetes in those aged <5 years decreased from 71.5 to 54.4 per 100,000 person-years (incidence rate ratio 0.79, 95% CI 0.71-0.86).
CONCLUSIONS
At the population level, a decrease in exposure to rotavirus infections was associated with a decrease in the incidence of type 1 diabetes in young children.
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