biostudies-literatureUnknown16Zhang P<h4>Introduction</h4>Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorders often co-occurring with sleep problems and other physical disorders. Vitamin D regulates sleep and supports normal brain function. Regrettably, no studies have looked at whether vitamin D insufficiency exacerbates sleep problems in ADHD children and further affects ADHD symptoms.<h4>Objective</h4>This study aimed to examine whether vitamin D insufficiency exacerbates sleep problems and ADHD symptoms in children aged 6-14 years.<h4>Methods</h4>This is a case-control study, 260 ADHD children (aged 6-14 years) were enrolled in, of whom 95 had vitamin D insufficiency and 165 had sufficiency. Collected all ADHD symptom severity and functional impairment scales, including Swanson, Nolan Frontiers in psychiatry1546692https://www.ebi.ac.uk/biostudies/studies/S-EPMC11966964biostudies-literatureVitamin D insufficiency and sleep disturbances in children with ADHD: a case-control study.PMC11966964Liu YMa YZhao TZhang CSun HZhang PfalseVitamin D insufficiency and sleep disturbances in children with ADHD: a case-control study.<h4>Introduction</h4>Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorders often co-occurring with sleep problems and other physical disorders. Vitamin D regulates sleep and supports normal brain function. Regrettably, no studies have looked at whether vitamin D insufficiency exacerbates sleep problems in ADHD children and further affects ADHD symptoms.<h4>Objective</h4>This study aimed to examine whether vitamin D insufficiency exacerbates sleep problems and ADHD symptoms in children aged 6-14 years.<h4>Methods</h4>This is a case-control study, 260 ADHD children (aged 6-14 years) were enrolled in, of whom 95 had vitamin D insufficiency and 165 had sufficiency. Collected all ADHD symptom severity and functional impairment scales, including Swanson, Nolan 2025-01-01T00:00:00Z20252025-07-11T03:03:59.756Z2025-07-11T03:03:59.756ZS-EPMC119669644018220310.3389/fpsyt.2025.1546692