Association of Serotonin Transporter Gene Polymorphisms With Poststroke Depression

Abstract
Approximately 33% of patients experience major depression after stroke.1 The etiology of poststroke depression (PSD) is thought to be multifactorial, involving psychosocial and biological mechanisms.2 A premorbid history of depression and high levels of disability increase the risk of depression in stroke survivors, yet these factors are poor predictors of who will become depressed after stroke and who will not.3