Comparative study of finger lengths and digit ratio in men of Ancona, Italy and Oradea, Romania

November 17, 2014

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Article Title:	Comparative study of finger lengths and digit ratio in men of Ancona, Italy and Oradea, Romania
Authors:	Tomulescu I. M., Nicoraș G.L.
Affiliation:	1University of Oradea, Faculty of Sciences, Department of Biology, 1th Universităţii str., 410087 Oradea, Romania
Abstract:	Digit ratio (2D:4D) denotes the relative length of the second and fourth digits. Many authors considered this ratio to be a biomarker of the balance between fetal estrogen and testosterone in a narrow window of early ontogeny (Manning et al., 2014). Males and females generally have different finger proportions. Thus, in men, the 2nd digit is shorter than 4th digit, but in women, 2nd has an equal length or longer than the 4th digit. Our study is particularly about the digit ratio 2D:4D, but 2D:3D and 3D:4D, too in men populations. The research was made in two countries (Italy and Romania) in Ancona (Italy) and Oradea (Romania). Our aim was to identify possible significant differences between the two male populations. The results are important because demonstrate the differences between the two men populations coherently the digit ratio.
Keywords:	digit ratio, digit length, biomarker, men populations, fetal sex hormones.
*Correspondence:	Ioana Mihaela Tomulescu Proffesor Assistant, Faculty of Sciences, Department of Biology, 1th Universităţii str., 410087 Oradea, Romania, Phone: +40259408161, email: imtomulescu@yahoo.com