A comparative study on digit ratio and hand patterns of three ethnic races of Malaysia

Egyptian Journal of Forensic Sciences

Dhiviah Nair¹  Ashwini P. Aithal¹  Satheesha B. Nayak¹  Vimal Ravi² 

[1] Department of Anatomy, Melaka Manipal Medical College (Manipal campus), Manipal Academy of Higher Education, Manipal, India;Melaka Manipal Medical College (Manipal Campus), Manipal Academy of Higher Education, Manipal, India

关键词: Hand pattern;    Digit ratio;    Malaysians;    Race;    Correlation;   

DOI  :  10.1186/s41935-018-0087-1

学科分类：生理学与病理学

来源: Springer

【 摘 要 】

To distinguish the characteristic hand pattern of each of the three different ethnicities in Malaysia and to study the hand pattern correlation between race and gender. Individual lengths of the fingers were then measured and tabulated to serve as the basis for analyzing the 2D (second digit):4D (fourth digit) hand ratio. Based on this ration, the hand patterns were classified as A, B, and C types. Hand pattern A (2D<4D) appears to be the most characteristic trait in Malays. The highest scoring hand pattern in Chinese is A as well with scores of 52% in their right hands and 60% in their left hands. In Indians, hand pattern C (2D>4D) shows dominance in their right hands with a score of 46% while hand pattern A dominates their left hands. Among the males, all three races show dominance in hand pattern A except in Chinese whereby the C hand pattern was dominant in their right hands (44%). Among the females, the most common trait in Malays and Chinese are the hand pattern A in both their hands. Indian females, however, showed dominance in hand pattern C in their right hands (60%), and hand pattern B (2D = 4D) dominated in their left hands (44%). Results of the statistical analysis revealed that there was a highly significant difference in the hand patterns of both the hands when compared to gender. The study suggests that ratio below or equal to 0.90 is suggestive of female sex for both hands, while a ratio of more than 0.91 is suggestive of male sex for both hands. The pattern A (2D<4D) is seen to be the most common trait among the three ethnicities of Malaysia with an exception seen in the right hands of Indians.

【 授权许可】

CC BY