ArticleAnnals of epidemiology2017
Early-life mortality risks in opposite-sex and same-sex twins: a Danish cohort study of the twin testosterone transfer hypothesis.
Article in Annals of epidemiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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Who cites it
9 citing papers in PubMed.
- Epigenetic consequences of hormonal interactions between opposite-sex twin fetuses.Clinical and translational medicine · 2020Article
- Gender Discrimination and Excess Female Under-5 Mortality in India: A New Perspective Using Mixed-Sex Twins.Demography · 2020Article
- Testing the twin testosterone transfer hypothesis-intergenerational analysis of 317 dizygotic twins born in Aberdeen, Scotland.Human reproduction (Oxford, England) · 2020Article
- Opposite-sex and same-sex twin studies of physiological, cognitive and behavioral traits.Neuroscience and biobehavioral reviews · 2020Review
- Newborn gender as a predictor of neonatal outcome in mixed gender twins born with very low birth weight.BMC pediatrics · 2019Article
- Lifespans of Twins: Does Zygosity Matter?Genes · 2019Article
- Cortisol advantage of neighbouring the opposite sexRoyal Society open science · 2018Article
- Risk of epilepsy in opposite-sex and same-sex twins: a twin cohort study.Biology of sex differences · 2018Article
- Tykes, Toddlers, Teens, and Twins of Robust Mothers: Do the Offspring of Twinning Mothers Share in Their Mother's Robust Phenotype?Biodemography and social biology · 2018Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
purposeTo investigate the twin testosterone transfer (TTT) hypothesis by comparing early-life mortality risks of opposite-sex (OS) and same-sex (SS) twins during the first 15 years of life.
methodsWe performed a population-based cohort study to compare mortality in OS and SS twins. We included 68,629 live-born Danish twins from 1973 to 2009 identified through the Danish Twin Registry and performed piecewise stratified Cox regression and log-binomial regression.
resultsAmong 1933 deaths, we found significantly higher mortality for twin boys than for twin girls. For both sexes, OS twins had lower mortality than SS twins; the difference persisted for the first year of life for boys and for the first week of life for girls.
conclusionsAlthough the mortality risk for OS boys was in the expected direction according to the TTT hypothesis, the results for OS girls pointed in the opposite direction, providing no clear evidence for the TTT hypothesis.
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