• Maelstrom Research
    We develop tools to leverage and achieve rigorous data
    harmonization, integration and analysis

Maelstrom Platform

The Maelstrom Platform is a suite of methods and software to facilitate data harmonization and integration

Maelstrom Repository

The Maelstrom Repository catalogues standardized information on research networks, studies, data and harmonization methods


Learn about our key partnerships with international networks and consortia to harmonize, integrate and analyse study data.



New website online: The new Maelstrom website offers comprehensive information about our partner networks and their member studies' designs; improved methods section; and an easier navigation. (2015/03/03)

Several studies added to the repository: Over 110 studies are now documented in the study catalogue. (2015/03/03)

Major update of the IALSA catalogue: The IALSA (Integrative Analysis of Longitudinal Studies on Aging) catalogue now includes full description of over 70 studies and allows searching across 11 studies for both variables collected and scales used. (2015/03/03)

Variable search now available: Full data dictionaries from 11 cohorts tagged with our new classification can now be searched online. Additional study variables will be added regularly (Variables Collection). (2015/03/03)

Initiation of a methods library: A library on harmonization methods is under development (Methods library). You can contribute by sending us references to papers or resources you think could be helpful to build up this new resource. (2015/03/03)

Contract to develop the CPTP data portal: A new contract has been signed with the Canadian Partnership for Tomorrow Project to develop their Harmonized-Data portal. (2015/03/03)

Release of harmonized data: over 700 harmonized variables across 10 datasets have been generated to serve the needs of the Canadian Partnership for Tomorrow Project. Additional harmonization work is ongoing. (2015/03/03)