Individual Study / FinnGeDi

The Finnish Gestational Diabetes (FinnGeDi) Study

The Finnish Gestational Diabetes (FinnGeDi) Study

Initiatives -
The Finnish Gestational Diabetes (FinnGeDi) study is a multicentre study that considered Finnish women who gave birth in 2009–12, as well as their children and the children’s fathers. The study period was after the introduction of new Finnish national comprehensive screening guidelines for gestational diabetes mellitus (GDM). The study consisted of two arms: 1. A prospective clinical, genetic case-control arm and a national register-based arm which also includes data on children’s siblings and grandparents. 2. The FinnGeDi study was initiated to study different aspects of GDM as diagnosed by comprehensive screening, which was expected to increase the prevalence of GDM by identifying previously undiagnosed cases. *Note: All published information has been collected from the article referenced in the Marker Paper box below. Therefore, there may be variations with more advanced versions of the study.* ****
Start Year


Study design
Follow Up
The first follow-up for the both arms will be performed 7–10 years after the completion of the enrolment, and is planned to continue for decades. Permissions for the register follow-ups will be updated in 2024 and after that in 5-year periods.

Marker Paper

Keikkala E, Mustaniemi S, Koivunen S, Kinnunen J, Viljakainen M, Männisto T, Ijäs H, Pouta A, Kaaja R, Eriksson JG, Laivuori H, Gissler M, Erkinheimo TL, Keravuo R, Huttunen M, Metsälä J, Stach-Lempinen B, Klemetti MM, Tikkanen M, Kajantie E, Vääräsmäki M. Cohort Profile: The Finnish Gestational Diabetes (FinnGeDi) Study. Int J Epidemiol. 2020 Jun 1;49(3):762-763g. doi: 10.1093/ije/dyaa039.

PUBMED 32374401


Sources of Recruitment
  • Families

Number of participants

Number of participants
Number of participants with biosamples


Availability of data and biosamples