Transsexuals and Birth Order

[Shana A]

Transsexuals and Birth Order  March 21, 2010
Posted by Geekgirl

http://lgbtlatestscience.wordpress.com/2010/03/21/transsexuals-and-birth-order/

Arch Sex Behav. 2010 Mar 16. [Epub ahead of print]

Birth Order and Ratio of Brothers to Sisters in Spanish Transsexuals.

Three Western studies have shown that male-to-female (MF) homosexual transsexuals tend to be born later than their siblings and to come from sibships with more brothers than sisters. The objective of this study was to determine whether these variables would be replicated in 530 MF and female-to-male (FM) Spanish transsexuals according to sexual orientation. The results showed that MF homosexual transsexuals had significantly more older brothers than the non-homosexual MF group.