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New publication in Wellcome Open Research

Publication date: July 2021

Publication title: "Cohort profile for the STratifying Resilience and Depression Longitudinally (STRADL) study: A depression-focused investigation of Generation Scotland, using detailed clinical, cognitive, and neuroimaging assessments [version 2; peer review: 2 approved]"
Authors: Tina Habota, Anca-Larisa Sanduy, Gordon D. Waiter , Christopher J. McNeil, J. Douglas Steele, Jennifer A. Macfarlane, Heather C. Whalley, Ruth Valentine, Dawn Younie, Nichola Crouch, Emma L. Hawkins, Yoriko Hirose, Liana Romaniuk, Keith Milburn, Gordon Buchan, Tessa Coupar, Mairi Stirling, Baljit Jagpal, Beverly MacLennan, Lucasz Priba, Mathew A. Harris, Jonathan D. Hafferty, Mark J. Adams, Archie I. Campbell, Donald J. MacIntyre, Alison Pattie, Lee Murphy, Rebecca M. Reynolds, Rebecca Elliot, Ian S. Penton-Voak, Marcus R. Munafò, Kathryn L. Evans, Jonathan R. Seckl, Joanna M. Wardlaw, Stephen M. Lawrie, Christopher S. Haley, David J. Porteous, Ian J. Deary, Alison D. Murray, Andrew M. McIntosh



STratifying Resilience and Depression Longitudinally (STRADL) is a population-based study built on the Generation Scotland: Scottish Family Health Study (GS:SFHS) resource. The aim of STRADL is to subtype major depressive disorder (MDD) on the basis of its aetiology, using detailed clinical, cognitive, and brain imaging assessments. The GS:SFHS provides an important opportunity to study complex gene-environment interactions, incorporating linkage to existing datasets and inclusion of early-life variables for two longitudinal birth cohorts. Specifically, data collection in STRADL included: socio-economic and lifestyle variables; physical measures; questionnaire data that assesses resilience, early-life adversity, personality, psychological health, and lifetime history of mood disorder; laboratory samples; cognitive tests; and brain magnetic resonance imaging. Some of the questionnaire and cognitive data were first assessed at the GS:SFHS baseline assessment between 2006-2011, thus providing longitudinal measures relevant to the study of depression, psychological resilience, and cognition. In addition, routinely collected historic NHS data and early-life variables are linked to STRADL data, further providing opportunities for longitudinal analysis. Recruitment has been completed and we consented and tested 1,188 participants.


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