Magnetic resonance imaging (MRI) brain images were acquired on Siemen's Skyra 3T scanners with a 32‐channel head coil (Siemen's Medical Solutions) across multiple UKB sites. The acquired imaging data were processed using standardized pipelines developed by the UKB imaging team and made available to researchers as summary statistics representing key brain imaging variables referred to as imaging‐derived phenotypes (IDPs). Full details of the image acquisition protocol and processing pipeline are publicly available. 21 , 22
