Correlation of the second to fourth digit ratio with the body mass index of infertile men
Yu, H-chen.; Sheng, Y-jing.; Geng, Z.; Zhao, J-li.; Liu, J-jie.; Huo, Z-hao.; Lu, H.
Zhonghua Nan Ke Xue 21(11): 977-981
2015
ISSN/ISBN: 1009-3591 PMID: 26738322 Document Number: 680660
To investigate the relationship between the second to the fourth digit ratio (2D:4D) and body mass index (BMI) in infertile men of the Han ethnic group in Ningxia. Using anthropometry, we calculated the mean ratio of 2D:4D and BMI of 197 infertile men and 148 normal healthy male controls, followed by analysis of their relationship. The BMI was correlated positively with the 2D:4D ratio of the left hand in the infertile men (P < 0.05) and in the patients with a higher 2D:4D ratio of the left hand (P < 0.05), but negatively with the 2D:4D ratio of the righ/left (Dr-1) (left: P < 0.01; Dr-l: P < 0.05). The mean 2D: 4D ratio and BMI were both lower in the normal control than in the infertile men, with statistically significant differences in BMI (P < 0.05) and the 2D:4D ratio of the left hand (P < 0.05). There is a correlation between the 2D:4D ratio and BMI in infertile men.