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Clinical study for clinical features and prognosis of Gender Identity Disorders in Japan

Research Project

Project/Area Number 14570924
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Psychiatric science
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

SATO Toshiki  Okayama University Hospital, Lecturer, 医学部・歯学部附属病院, 講師 (30304348)

Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2003: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
KeywordsGender Identity Disorders / Transsexualism / Sex Reassignment Surgery / Hormonal Therapy / Psychological test / Twins Siblings / 知能検査
Research Abstract

A comprehensive treatment of Gender Identity Disorders consists of a diagnosis, psychotherapy, hormonal treatment, surgical operation. We applied for the comprehensive treatment as "Clinical study for a comprehensive treatment of Gender Identity Disorders" to Ethics Committee Okayama University Medical School in September, 1999. Ethics Committee Okayama University Medical School approved us in March, 2000. We do a comprehensive treatment with urology, gynaecology, plastic surgery.
450 patients had a checkup in Okayama University Hospital in chief complaint in gender dysphoria by March, 2004. Number of cases of gender identity disorders is 428 in that. Ethics Committee Okayama University Medical School approved hormonal treatment of 101 patients and 100 patients received hormonal treatment. 19 patients received sex reassignment surgery and 14 patients received mastectomy.
We carried out psychotherapy and psychological tests (Wechsler adult intelligence scale, Lazarus Type Stress Coping In … More ventory and Ego Aptitude Scale). We reviewed results of 87 patients about Wechsler adult intelligence scale. In the group that education calendars were more than 13 years, MTF patients had a significantly higher verbal IQ than FTM patients. An assessment of the lower items revealed between less than 12 years educational groups that the "information score" of MTF patients was significantly higher than it of FTM patients. In the same group, the "digit symbol score" of FTM patients was significantly higher than it of MTF patients. MTF patients had a significantly higher "comprehension score" than FTM patients in the group that education calendars were more than 13 years. These results accorded for a physical sexual characteristic.
Six sets of twins and siblings-pairs concordant for Gender Identity Disorders and three sets of discordant twins were reported. An incidence of Gender Identity Disorders in a family is higher than the incidence in the public. We suppose that genetic factor and environmental factor contribute to an outbreak factor of Gender Identity Disorders. Less

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 中塚幹也, 佐藤俊樹 他: "岡山大学ジェンダークリニックにおける性同一性障害121例の検討"産科と婦人科. 70. 368-373 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 佐藤俊樹, 岡部伸幸 他: "性同一性障害の双生児例、同胞例"臨床精神医学. 32. 1419-1423 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 性同一性障害に関する第二次特別委員会: "性同一性障害に関する診断と治療のガイドライン(第2版)"精神経誌. 104. 618-632 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Nakatsuka, T.Sato et al.: "Clinical Characteristics of 121 patients with gender identity disorder in Okayama, Japan"Obstet.Gynecol. 70. 368-373 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.sato, N.Okabe et al.: "Gender identity disorders in twins and siblings"Japanese Journal of Clinical Psychiatry. 32. 1419-1424 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] The second special committee for Gender Identity Disorders: "A diagnosis and therapeutic guideline for Gender Identity Disorders (the second edition)"Psychiat.Neurol.Jap.. 104. 618-632 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 中塚幹也, 佐藤俊樹 他: "岡山大学ジェンダークリニックにおける性同一性障害121例の検討"産科と婦人科. 70. 368-373 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 佐藤俊樹, 岡部伸幸 他: "性同一性障害の双生児例、同胞例"臨床精神医学. 32. 1419-1424 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 中塚幹也: "岡山大学ジェンダークリニックにおける性同一性障害121例の検討"産科と婦人科. 70. 368-373 (2003)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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