L, Breedlove S. The older brother effect observed in Western samples is driven by a higher than expected sex ratio among the older siblings of androphilic males based on known population parameters, as well as a tendency for androphilic males to be later born Blanchard In addition, research demonstrates that although the number of biological older brothers is correlated with an increased probability of androphilia in men, the number of non-biological older brothers has no effect Bogaert This article has been cited by other articles in PMC. To troubleshoot, please check our FAQsand if you can't find the answer there, please contact us.
Within Samoan society, tolerance of all individuals and their likes, dislikes and choices is of high importance, and from a young age children are not pushed to conform to particular gender roles in the same way Western children generally are.
Blanchard reported a younger brother effect for feminine male-to-female androphilic transsexuals and argued that this effect occurred separately from an older brother effect found for the same sample. The sibs and children of homosexuals. Choosing to be childfree By Kellie Scott for Ladies, We Need to Talk Women who choose not to have children are often labelled selfish, shallow and immature. Birth order and sibling sex ratio in homosexual versus heterosexual males and females.
If it were possible to establish that androphilic males from different cultural backgrounds shared associated features that are indicators, at least in theory, of underlying causal processes, then this would give support to the possibility of common biological bases.