Metabolites
Association of Shift Work and Serum Vitamin D Levels with Excessive Daytime Sleepiness, Anxiety Symptoms, and Depressive Symptoms in Female Nurses
By Karcı İS, Marakoğlu K, Yerlikaya FH and 1 others.
Abstract
Background/objectives
This study evaluated the associations of shift work with serum vitamin D levels, excessive daytime sleepiness (EDS), and symptoms of anxiety and depression among female nurses working at a university hospital.
Methods
This was an analytical cross-sectional study. Sociodemographic and occupational characteristics were collected via a structured questionnaire. EDS was assessed using the Epworth Sleepiness Scale (ESS), and symptoms of anxiety and depression were assessed using the Hospital Anxiety and Depression Scale (HADS). Serum 25-hydroxyvitamin D [25(OH)D] levels were measured by electrochemiluminescence (Elecsys Vitamin D total II, cobas e 801). Deficiency was defined as <20 ng/mL.