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Digit ratio (2D:4D) and maternal testosterone-to-estradiol ratio measured in early pregnancy

9 Aug 2022

Abstract excerpt

Abstract The ratio of index to ring finger (2D:4D) has been hypothesised to indicate prenatal androgen exposure, yet evidence for its validity is lacking. We report the first pre-registered study to investigate mothers’ early pregnancy sex hormone concentrations in relation to their children’s digit ratios measured at 18–22-month follow-up. Although the testosterone (T) to estradiol (E) ratio correlated...

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PMID: 35945232
DOI: 10.1038/s41598-022-17247-3

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