Gender Identity Disorder (GID) is a relatively rare condition of atypical gender development in which there is a psychological perception of self as masculine or feminine which is incongruent with ones phenotype. GID replaced the term Transsexualism in DSM-IV in 1994. The demographics of GID in Ireland have not been established. Since 2000 we have received 52 referrals of individuals with confirmed GID to our endocrine service for consideration for hormonal treatment (HT). Of the 52 patients 45 have male to female (MTF) GID (mean age 38.9 years) and 7 have female to male (FTM) GID (mean age 30.7 years). The age at presentation in this group is approximately 9 years older than in international series for both MTF (39 years v 30yrs) and FTM (31 yrs v 22yrs). The karyotype where analysed has been normal for their phenotypic sex. Twenty-three of the patients had received HT prior to attending our clinic that in only one case had been prescribed by a specialist. A number of patients had obtained HT via the internet or from overseas sources without medical review. Eighteen of the patients have been or are married and 14 of the group have children. The scale of referrals confirms that GID exists in the Irish population to a significant degree. Thus an appropriate care pathway for people with the condition needs to be established. This will facilitate optimum medical management of the patient group and a coherent approach to the many difficult social issues faced individuals with this disorder.

Leinster