Risk of depression in persons with Alzheimer's disease : A national cohort study
INTRODUCTION: Depression is a risk factor and possible prodromal symptom of Alzheimer's disease (AD), but little is known about subsequent risk of developing depression in persons with AD. METHODS: National matched cohort study was conducted of all 129,410 persons diagnosed with AD and 390,088 with all-cause dementia during 1998–2017 in Sweden, and 3,900,880 age- and sex-matched controls without d