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首页> 外文期刊>The journal of sexual medicine >Gender identity disorder in twins: A review of the case report literature
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Gender identity disorder in twins: A review of the case report literature

机译：双胞胎中的性别认同障碍：病例报告文献综述

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Introduction. The etiology of gender identity disorder (GID) remains largely unknown. In recent literature, increased attention has been attributed to possible biological factors in addition to psychological variables. Aim. To review the current literature on case studies of twins concordant or discordant for GID. Methods. A systematic, comprehensive literature review. Results. Of 23 monozygotic female and male twins, nine (39.1%) were concordant for GID; in contrast, none of the 21 same-sex dizygotic female and male twins were concordant for GID, a statistically significant difference (P=0.005). Of the seven opposite-sex twins, all were discordant for GID. Conclusions. These findings suggest a role for genetic factors in the development of GID.
机译：介绍。性别认同障碍（GID）的病因学仍然未知。在最近的文献中，除了心理变量之外，注意力的增加还归因于可能的生物学因素。目标。复习有关GID一致或不一致的双胞胎案例研究的最新文献。方法。系统，全面的文献综述。结果。在23对单卵双生雌性和雄性双胞胎中，有9个（39.1％）符合GID;相比之下，21对同性同卵双生女和男性双胞胎都没有GID一致，统计学上有显着性差异（P = 0.005）。在七个异性恋双胞胎中，所有人都不符合GID。结论。这些发现提示遗传因素在GID的发生中具有重要作用。

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