Invited Commentary: E Pluribus Unum for Epidemiology

Area of Science:

• Epidemiology
• Genetics
• Oncology

Background:

• First-generation consortia faced limitations with data harmonization and exposure data.
• Glioma research requires large sample sizes for robust genetic association studies.

Purpose of the Study:

• To introduce a new generation of epidemiologic consortia exemplified by the GLIOGENE Consortium.
• To establish an infrastructure for systematic exposure data collection in glioma studies.
• To facilitate downstream evaluation of gene-environment interactions in glioma.

Main Methods:

• Formation of the Genetic Epidemiology of Glioma International Consortium (GLIOGENE Consortium).
• Development of the Glioma International Case-Control (GICC) Study with systematic exposure data collection.
• Inclusion of diverse study designs to maximize sample size while ensuring data comparability.

Main Results:

• The GLIOGENE Consortium addresses limitations of prior consortia through proactive data coordination.
• The GICC Study provides a model for integrated data collection in international case-control studies.
• This approach enables robust investigation of genetic and environmental factors in glioma.

Conclusions:

• The GLIOGENE Consortium represents a paradigm shift in epidemiologic research, prioritizing early collaboration and harmonization.
• The GICC Study serves as a blueprint for future international research efforts in complex diseases.
• Systematic, coordinated data collection at study initiation is crucial for advancing our understanding of glioma etiology.