Gender identity is a strong psychological pain caused by the difference between one's own gender felt by a person and the gender determined at birth.Dr. Yoshitaka Oshima of Okayama University Hospital investigated the proportion of the population of gender dysphoria in Japan in the research group of the Department of Psychiatry and Neuropathology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences. I understood.
The proportion of the population with gender identity has traditionally been determined by the number of specialist clinic examinees.This is a lower value than it actually is because it excludes people who do not receive a medical examination.Recent studies calculate the proportion of the target population from a sample of the general population, but the question is simple and emphasizes the intention to physical treatment (hormone therapy and surgery), but the body suffers from gender dysphoria. It is not an appropriate method because it does not always require specific treatment.
Therefore, the research group conducted a two-step survey this time.First, we examined the gender self-identification of 2 people (aged 2-20) registered with an internet research company and gathered potential transgender people.We also defined two types of gender identity disorder (narrow and broad).Next, we used the Utrecht Gender Identity Scale, a highly reliable questionnaire, for the first time.
As a result, the age-adjusted population ratio of gender identity was estimated to be 0.27% for those who were considered male at birth in a narrow sense, 0.35% for those who were considered female at birth, and 0.87% and 1.1% in a broad sense, respectively.This is 2015 to 11 times the estimated value in the Netherlands in 35.In addition, although no significant difference was observed between genders, the values of both sexes were higher in the younger group than in the older group.
The results suggest that many people who have not been diagnosed or physically treated at a specialized clinic may suffer from gender identity disorder.In the fields of medicine, education, policy and research, the conventional uniform view focusing on physical treatment needs to be reviewed.
