We investigated the association between serum vitamin D levels and pre-stroke sleep
quality and the occurrence of poststroke depression (PSD) and poststroke anxiety (PSA) in
acute ischemic stroke (AIS). Methods This prospective cross-sectional study included
hospitalized patients with AIS and age-and sex-matched controls. Vitamin D levels were
measured within 24 h of admission. Sleep quality was assessed using the Pittsburgh Sleep …