For participants

Members of the Karma study and our clinical trials are welcome to visit our participant website at (in Swedish), or contact us at the Karma study centre at:

Karma Studiecenter
SöS Bröstcentrum (Södra station)
Fatburs Brunnsgata 7
118 28 Stockholm
Telephone: +46-8-524 823 39

For researchers interested in collaboration

Investigators interested in collaborations can find more information here. If you have any questions about collaborations, please email us at or

For the media

Please direct inquiries to professor Per Hall at the department of medical epidemiology and biostatistics at Karolinska Institutet.

Telephone: +46-8-524 823 39
Mail: or

How to cite us

For publications including Karma material and information, please cite Gabrielson et al. (2017) and please acknowledge the following:

The KARMA study is supported by the Märit and Hans Rausing Initiative Against Breast Cancer, the Swedish Research Council, the Swedish Cancer Society and the Kamprad Foundation.