title: Prevalence of Metabolic Syndrome in Patients with Schizophrenia in Korea: A Multicenter Nationwide Cross-Sectional Study.
abstract: OBJECTIVE
  We designed a nationwide study with limited exclusion criteria to investigate the prevalence of metabolic syndrome (MetS) in Korea and its relationship with antipsychotic medications.
  
  
  METHODS
  This multicenter, cross-sectional, and observational study included patients diagnosed with schizophrenia or schizoaffective disorder. Sixteen hospitals enrolled 845 patients aged 18 to 65 years prescribed any antipsychotic medication between August 2011 and August 2013. MetS was diagnosed using the criteria of the modified Adult Treatment Panel III of the National Cholesterol Education Program with the Korean abdominal obesity definition (waist circumference ≥85 cm in women, ≥90 cm in men).
  
  
  RESULTS
  The prevalence of MetS in all patients was 36.5% and was significantly higher in men than women (men, 40.8%; women, 32.2%) and was significantly correlated with age [odds ratio (OR) 1.02] and duration of illness (OR 1.03). The prevalence of MetS across antipsychotic drugs in the major monotherapy group was as follows: 18.8% for quetiapine, 22.0% for aripiprazole, 33.3% for both amisulpride and paliperidone, 34.0% for olanzapine, 35% for risperidone, 39.4% for haloperidol, and 44.7% for clozapine.
  
  
  CONCLUSIONS
  The prevalence of MetS is very high in patients with schizophrenia or schizoaffective disorder. Screening and monitoring of MetS is also strongly recommended.
authors.affiliation: Department of Psychiatry, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
authors.forename: Jung Sun
authors.initials: JS
authors.lastname: Lee
authors.affiliation: Department of Psychiatry, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
authors.forename: Jun Soo
authors.initials: JS
authors.lastname: Kwon
authors.affiliation: Department of Psychiatry, College of Medicine, Hanyang University, Hanyang University Medical Center, Seoul, Republic of Korea.
authors.forename: Daeho
authors.initials: D
authors.lastname: Kim
authors.affiliation: Department of Psychiatry, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, Republic of Korea.
authors.forename: Sung-Wan
authors.initials: SW
authors.lastname: Kim
authors.affiliation: Department of Psychiatry, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea.
authors.forename: Jae-Jin
authors.initials: JJ
authors.lastname: Kim
authors.affiliation: Department of Psychiatry, Gil Medical Center, Gachon University School of Medicine, Neuroscience Research Institute, Gachon University, Incheon, Republic of Korea.
authors.forename: Jong-Hoon
authors.initials: JH
authors.lastname: Kim
authors.affiliation: Department of Psychiatry, Seoul Medical Center, Seoul, Republic of Korea.
authors.forename: Hee Jung
authors.initials: HJ
authors.lastname: Nam
authors.affiliation: Department of Psychiatry, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea.
authors.forename: Seunghyong
authors.initials: S
authors.lastname: Ryu
authors.affiliation: Department of Psychiatry & Behavioral Neuroscience, Catholic Kwandong University, International St. Mary's Hospital, Incheon, Republic of Korea.
authors.forename: Il Ho
authors.initials: IH
authors.lastname: Park
authors.affiliation: Department of Psychiatry, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea.
authors.forename: Suk Kyoon
authors.initials: SK
authors.lastname: An
authors.affiliation: Yongin Psychiatric Research Institute, Yongin Mental Hospital, Yongin, Republic of Korea.
authors.forename: Hong-Seok
authors.initials: HS
authors.lastname: Oh
authors.affiliation: Department of Psychiatry, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Republic of Korea.
authors.forename: Seunghee
authors.initials: S
authors.lastname: Won
authors.affiliation: Department of Psychiatry, Kangwon National University School of Medicine, Kangwon National University Hospital, Chuncheon, Republic of Korea.
authors.forename: Kanguk
authors.initials: K
authors.lastname: Lee
authors.affiliation: Department of Psychiatry, Eulji University School of Medicine, Eulji General Hospital, Seoul, Republic of Korea.
authors.forename: Kyu Young
authors.initials: KY
authors.lastname: Lee
authors.affiliation: Department of Psychiatry, Inje University College of Medicine, Ilsan Paik Hospital, Goyang, Republic of Korea.
authors.forename: Seung-Hwan
authors.initials: SH
authors.lastname: Lee
authors.affiliation: Yongin Psychiatric Research Institute, Yongin Mental Hospital, Yongin, Republic of Korea.
authors.forename: Yu Sang
authors.initials: YS
authors.lastname: Lee
authors.affiliation: Department of Psychiatry, College of Medicine, Hallym University, Kangnam Sacred Heart Hospital, Seoul, Republic of Korea.
authors.forename: Jung-Seo
authors.initials: JS
authors.lastname: Yi
authors.affiliation: Department of Psychiatry, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea.
authors.forename: Kyung Sue
authors.initials: KS
authors.lastname: Hong
authors.affiliation: Department of Psychiatry, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
authors.forename: Yeon Ho
authors.initials: YH
authors.lastname: Joo
keywords: Antipsychotics; Korean population; Metabolic syndrome; Schizoaffective disorder; Schizophrenia