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Collaboration on Betula data

Collaborations on data from the Betula-project will be available for external researchers as far as the proposed projects are assessed by the Steering Committee as scientifically sound, and the issues to be studied is not already highlighted in ongoing Betula studies.

Ethical approval should be secured for all new sub studies from the Swedish Ethical Review Authority. This responsibility lies with the individual researcher. DTA/MTA can be assessed by the Betula steering committee before an application is sent to the ERA, but no data will be shared before a copy of the ethical approval has been handed in to the Betula steering committee.

For guidance regarding if further ethical vetting is needed, see this page (in Swedish):

Withdrawals from different databases are made after the project have been approved and can be including certain financial costs to cover working hours for those who do outlets, create files etc.

Betula database

  • Betula base-database (requires DTA)

Includes longitudinal information on memory, health, personality, life-events, demographic information, etc.

  • Biological samples (requires MTA)

Includes blood samples, saliva etc.

  • Brain imaging (requires DTA)

Includes structural and functional MRI


If the study 's proposals include data from several areas of Betula it must be stated. Inquiries sent to Betulas contact person, Mikael Stiernstedt.

Assessing proposed collaborations

The Steering Committee for the Betula project meets twice every semester to assess proposed collaborations.

Betula data and materials: General considerations and specific rules.
(in Swedish).

Data Transfer Agreement, DTA (in Swedish)

Material Transfer Agreement, MTA (in Swedish)