Psychiatry Investig.  2018 Apr;15(4):396-401. 10.30773/pi.2017.08.30.

Association Between Vitamin D Insufficiency and Metabolic Syndrome in Patients With Psychotic Disorders

Affiliations
  • 1Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea. swkim@chonnam.ac.kr
  • 2Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
  • 3Mindlink, Gwangju Bukgu Community Mental Health Center, Gwangju, Republic of Korea.
  • 4Gwangju Mental Health Commission and Gwangju Bukgu Community Mental Health Center, Gwangju, Republic of Korea.
  • 5Department of Food and Nutrition, Seoul Women's University, Seoul, Republic of Korea.
  • 6Orygen, The National Centre of Excellence in Youth Mental Health and the Department of Psychiatry, The University of Melbourne, Melbourne, Australia.
  • 7IMPACT Strategic Research Centre, School of Medicine, Deakin University, Geelong, Australia.

Abstract

OBJECTIVE: This study examined the association between vitamin D and metabolic syndrome in patients with psychotic disorders.
METHODS
The study enrolled 302 community-dwelling patients with psychotic disorders. Sociodemographic and clinical characteristics, including blood pressure, physical activity, and dietary habit were gathered. Laboratory examinations included vitamin D, lipid profile, fasting plasma glucose, HbA1c, liver function, and renal function. Vitamin D insufficiency was defined as <20 ng/mL. Clinical characteristics associated with vitamin D insufficiency were identified.
RESULTS
Among the 302 participants, 236 patients (78.1%) had a vitamin D insufficiency and 97 (32.1%) had metabolic syndrome. Vitamin D insufficiency was significantly associated with the presence of metabolic syndrome (p=0.006) and hypertension (p=0.017). Significant increases in triglycerides and alanine transaminase were observed in the group with a vitamin D insufficiency (p=0.002 and 0.011, respectively). After adjusting for physical activity and dietary habit scores, vitamin D insufficiency remained significantly associated with metabolic syndrome and hypertension.
CONCLUSION
Vitamin D insufficiency was associated with metabolic syndrome and was particularly associated with high blood pressure, although the nature, direction and implications of this association are unclear.

Keyword

Vitamin D; Hypertension; Metabolic syndrome; Schizophrenia; Psychotic disorder
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