A1 Refereed original research article in a scientific journal
Does Second-to-Fourth Digit Length Ratio (2D:4D) Predict Age at Menarche in Women?
Authors: Helle S
Publisher: WILEY-LISS
Publication year: 2010
Journal: American Journal of Human Biology
Journal name in source: AMERICAN JOURNAL OF HUMAN BIOLOGY
Journal acronym: AM J HUM BIOL
Number in series: 3
Volume: 22
Issue: 3
First page : 418
Last page: 420
Number of pages: 3
ISSN: 1042-0533
DOI: https://doi.org/10.1002/ajhb.21000(external)
Abstract
Prenatal steroid levels, estimated as the ratio of second-to-fourth digit length (2D:4D), have been related to reproductive success in women, but direct associations between 2D:4D and physiological measures of fertility remain rare. A recent study reported that lower, masculinized right hand 2D:4D was correlated with delayed age at menarche in women. We addressed this question by investigating whether 2D:4D was associated with recalled age at menarche in 282 post-reproductive Finnish women, using Cox regression model that controlled for a woman's sibling composition, urban or rural residence and temporal trend in menarcheal age. We found no evidence that neither the 2D:4D of the right nor the left hand were related to a woman's age at menarche among these Finnish women. Am. J. Hum. Biol. 22:418-420, 2010. (C) 2009 Wiley-Liss, Inc.
Prenatal steroid levels, estimated as the ratio of second-to-fourth digit length (2D:4D), have been related to reproductive success in women, but direct associations between 2D:4D and physiological measures of fertility remain rare. A recent study reported that lower, masculinized right hand 2D:4D was correlated with delayed age at menarche in women. We addressed this question by investigating whether 2D:4D was associated with recalled age at menarche in 282 post-reproductive Finnish women, using Cox regression model that controlled for a woman's sibling composition, urban or rural residence and temporal trend in menarcheal age. We found no evidence that neither the 2D:4D of the right nor the left hand were related to a woman's age at menarche among these Finnish women. Am. J. Hum. Biol. 22:418-420, 2010. (C) 2009 Wiley-Liss, Inc.
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