title: Low anxiety disorder comorbidity rate in bipolar disorders in Han Chinese in Taiwan.
abstract: OBJECTIVE
  Studies report high comorbidity of lifetime anxiety disorders with bipolar disorders in Western patients, but it is unclear in Taiwan. The authors explored the comorbidity of anxiety disorders in different bipolar disorder subtypes in Han Chinese in Taiwan.
  
  
  METHODS
  Three hundred twenty-five patients with bipolar disorder (bipolar I: 120; bipolar II: 205) disorder were recruited from two general medical outpatient services. They were evaluated and their diagnoses confirmed by a psychiatrist using the Chinese version of the Modified Schedule of Affective Disorder and Schizophrenia-Lifetime. The exclusion criteria were: any DSM-IV-TR Axis I diagnosis, other than bipolar disorder, being outside the 18-65-year-old age range, any other major and minor mental illnesses except anxiety disorder, any neurological disorders or organic mental disorders.
  
  
  RESULTS
  Thirty-two (26.7%) of patients were comorbid with lifetime anxiety disorder and bipolar I, 80 (39.0%) with lifetime anxiety disorder and bipolar II, 7 (5.8%) were comorbid with two or more anxiety disorders and bipolar I, and 27 (13.2%) with two or more anxiety disorders and bipolar II.
  
  
  CONCLUSIONS
  That more than twice as many bipolar II than bipolar I patients reported two or more anxiety disorders implies that the complication is more prevalent in bipolar II patients.
authors: Division of Clinical Psychology, Institute of Allied Health Sciences, Department of Psychiatry, College of Medicine, National Cheng Kung University, and National Cheng Kung University Hospital, Tainan, Taiwan.
authors: Yun-Hsuan
authors: YH
authors: Chang
authors: Shiou-Lan
authors: SL
authors: Chen
authors: Shih-Heng
authors: SH
authors: Chen
authors: Chun-Hsieh
authors: CH
authors: Chu
authors: Sheng-Yu
authors: SY
authors: Lee
authors: Hsin-Fen
authors: HF
authors: Yang
authors: Nian-Sheng
authors: NS
authors: Tzeng
authors: I Hui
authors: IH
authors: Lee
authors: Po See
authors: PS
authors: Chen
authors: Tzung Lieh
authors: TL
authors: Yeh
authors: San-Yuan
authors: SY
authors: Huang
authors: Kuei-Ru
authors: KR
authors: Chou
authors: Yen Kuang
authors: YK
authors: Yang
authors: Hui-Chen
authors: HC
authors: Ko
authors: Ru-Band
authors: RB
authors: Lu
authors: Jules
authors: J
authors: Angst
mesh_terms: D000328:Adult; D001008:Anxiety Disorders / Q000208:ethnology* / Q000523:psychology*; D044466:Asian People / Q000208:ethnology* / Q000523:psychology*; D001714:Bipolar Disorder / Q000208:ethnology* / Q000523:psychology*; D015897:Comorbidity; D005260:Female; D006801:Humans; D008297:Male; D013624:Taiwan / Q000208:ethnology; D055815:Young Adult