Low digit ratio (2D:4D) is associated with delayed menarche

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The prenatal environment of the human fetus is now known to have lasting physiological and behavioral effects into childhood and adulthood. The objective of this study was to examine the relationship between early testosterone exposure, as measured by the ratio of the length of the 2nd and 4th digits (2D:4D ratio), and age of menarche. Retrospective, self-report data on menarcheal age were obtained from 206 healthy female college students, as well as finger length ratio data from both hands. Low right-hand 2D:4D ratios (but not left-hand) were associated with delayed menarche. The results provide evidence for an androgen-delayed menarche link and suggest that this relationship can be continuous in nature and not always categorical as occurs in congenital adrenal hyperplasia, hyperandrogenism, or polycystic ovary syndrome.

Original languageEnglish (US)
Pages (from-to)487-489
Number of pages3
JournalAmerican Journal of Human Biology
Volume20
Issue number4
DOIs
StatePublished - Jul 1 2008

Fingerprint

menarche
Menarche
hands
Hand
androgen
testosterone
polycystic ovary syndrome
adulthood
Hyperandrogenism
Congenital Adrenal Hyperplasia
student
Polycystic Ovary Syndrome
childhood
androgens
college students
hyperplasia
Self Report
Androgens
Fingers
fetus

All Science Journal Classification (ASJC) codes

  • Anatomy
  • Ecology, Evolution, Behavior and Systematics
  • Anthropology
  • Genetics

Cite this

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Low digit ratio (2D:4D) is associated with delayed menarche. / Matchock, Robert.

In: American Journal of Human Biology, Vol. 20, No. 4, 01.07.2008, p. 487-489.

Research output: Contribution to journalArticle

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