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Article

Digit ratio and autism spectrum disorders in the Avon Longitudinal Study of Parents and Children: a birth cohort study.

BMJ open - 25 Aug 2015

Guyatt Anna Louise, Heron Jon, Knight Bernice Le Cornu, Golding Jean, Rai Dheeraj

Abstract excerpt

OBJECTIVES: To investigate whether second-to-fourth digit ratio (2D:4D), a measure commonly used as a proxy for fetal testosterone exposure, is associated with autism spectrum disorders (ASDs), as predicted by the extreme male brain theory of autism. DESIGN: A birth cohort study. SETTING: The Avon Longitudinal Study of Parents and Children (ALSPAC). PARTICIPANTS: 6015 ALSPAC children with data on digit ratio, at...

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Identifiers

PMID: 26307613
DOI: 10.1136/bmjopen-2014-007433
PMCID: PMC4550720

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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