1. Department of Psychology; University of Oslo; Oslo Norway
2. Oxford Mindfulness Centre and Centre for Suicide Research; Department of Psychiatry; University of Oxford; United Kingdom
3. Department of Acute Medicine; Ullevål; Oslo University Hospital; Oslo Norway
4. Centre for Statistics in Medicine; Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences; University of Oxford; Oxford United Kingdom
5. Department of Statistics; University of Oxford; Oxford United Kingdom
6. Centre for Suicide Research; Department of Psychiatry; University of Oxford; Oxford United Kingdom