An anthropometric study of sexual orientation and gender identity in Thailand

Abstract The biodevelopment of psychological sex differentiation is putatively reflected in several anthropometrics. We examined eight anthropometrics in 1404 Thai participants varying in sex, sexual orientation, and gender identity/expression: heterosexual men and women, gay men, lesbian women, bis...

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Autores principales:	Malvina N. Skorska, Lindsay A. Coome, Diana E. Peragine, Madison Aitken, Doug P. VanderLaan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1027ca58f57b4e34a838a80638e98ad6
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spelling	oai:doaj.org-article:1027ca58f57b4e34a838a80638e98ad62021-12-02T18:02:31ZAn anthropometric study of sexual orientation and gender identity in Thailand10.1038/s41598-021-97845-92045-2322https://doaj.org/article/1027ca58f57b4e34a838a80638e98ad62021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97845-9https://doaj.org/toc/2045-2322Abstract The biodevelopment of psychological sex differentiation is putatively reflected in several anthropometrics. We examined eight anthropometrics in 1404 Thai participants varying in sex, sexual orientation, and gender identity/expression: heterosexual men and women, gay men, lesbian women, bisexual women, sao praphet song (transgender birth-assigned males), toms (transgender birth-assigned females), and dees (birth-assigned females attracted to toms). Exploratory factor analyses indicated the biomarkers should be analyzed independently. Using regressions, in birth-assigned males, less male-typical second-to-fourth digit ratios in the left hand were associated with sexual orientation towards men regardless of gender identity/expression, whereas shorter height and long-bone growth in the arms and legs were more evident among sao praphet song—who are both sexually oriented towards men and markedly feminine. In birth-assigned females, there were no clear sexual orientation effects, but there were possible gender-related effects. Groups of individuals who tend to be more masculine (i.e., toms, lesbians) showed more male-typical patterns on weight and leg length than some groups of individuals who tend to be less masculine (i.e., heterosexual women, dees). Thus, it appears the various anthropometrics inform separate biodevelopmental processes that differentially relate to sexual orientation and gender identity/expression depending on the measure in question as well as birth-assigned sex.Malvina N. SkorskaLindsay A. CoomeDiana E. PeragineMadison AitkenDoug P. VanderLaanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Malvina N. Skorska Lindsay A. Coome Diana E. Peragine Madison Aitken Doug P. VanderLaan An anthropometric study of sexual orientation and gender identity in Thailand
description	Abstract The biodevelopment of psychological sex differentiation is putatively reflected in several anthropometrics. We examined eight anthropometrics in 1404 Thai participants varying in sex, sexual orientation, and gender identity/expression: heterosexual men and women, gay men, lesbian women, bisexual women, sao praphet song (transgender birth-assigned males), toms (transgender birth-assigned females), and dees (birth-assigned females attracted to toms). Exploratory factor analyses indicated the biomarkers should be analyzed independently. Using regressions, in birth-assigned males, less male-typical second-to-fourth digit ratios in the left hand were associated with sexual orientation towards men regardless of gender identity/expression, whereas shorter height and long-bone growth in the arms and legs were more evident among sao praphet song—who are both sexually oriented towards men and markedly feminine. In birth-assigned females, there were no clear sexual orientation effects, but there were possible gender-related effects. Groups of individuals who tend to be more masculine (i.e., toms, lesbians) showed more male-typical patterns on weight and leg length than some groups of individuals who tend to be less masculine (i.e., heterosexual women, dees). Thus, it appears the various anthropometrics inform separate biodevelopmental processes that differentially relate to sexual orientation and gender identity/expression depending on the measure in question as well as birth-assigned sex.
format	article
author	Malvina N. Skorska Lindsay A. Coome Diana E. Peragine Madison Aitken Doug P. VanderLaan
author_facet	Malvina N. Skorska Lindsay A. Coome Diana E. Peragine Madison Aitken Doug P. VanderLaan
author_sort	Malvina N. Skorska
title	An anthropometric study of sexual orientation and gender identity in Thailand
title_short	An anthropometric study of sexual orientation and gender identity in Thailand
title_full	An anthropometric study of sexual orientation and gender identity in Thailand
title_fullStr	An anthropometric study of sexual orientation and gender identity in Thailand
title_full_unstemmed	An anthropometric study of sexual orientation and gender identity in Thailand
title_sort	anthropometric study of sexual orientation and gender identity in thailand
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/1027ca58f57b4e34a838a80638e98ad6
work_keys_str_mv	AT malvinanskorska ananthropometricstudyofsexualorientationandgenderidentityinthailand AT lindsayacoome ananthropometricstudyofsexualorientationandgenderidentityinthailand AT dianaeperagine ananthropometricstudyofsexualorientationandgenderidentityinthailand AT madisonaitken ananthropometricstudyofsexualorientationandgenderidentityinthailand AT dougpvanderlaan ananthropometricstudyofsexualorientationandgenderidentityinthailand AT malvinanskorska anthropometricstudyofsexualorientationandgenderidentityinthailand AT lindsayacoome anthropometricstudyofsexualorientationandgenderidentityinthailand AT dianaeperagine anthropometricstudyofsexualorientationandgenderidentityinthailand AT madisonaitken anthropometricstudyofsexualorientationandgenderidentityinthailand AT dougpvanderlaan anthropometricstudyofsexualorientationandgenderidentityinthailand
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An anthropometric study of sexual orientation and gender identity in Thailand

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