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http://dx.doi.org/10.5762/KAIS.2012.13.9.3983

Alcohol intake, smoking, and 2nd to 4th digit ratio of university students  

Kim, Soo-Il (Department of Anatomy & Research Institute for Medical Sciences, School of Medicine, Chungnam National University)
Kim, Keum-Sook (Department of Nursing, Hyechon College)
Cho, Keun-Ja (Department of Emergency Medical Service, Kongju National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.9, 2012 , pp. 3983-3990 More about this Journal
Abstract
The hazardous effects of heavy alcohol intake and smoking to body systems have been identified by numerous studies, and there is many influencing factors on alcohol intake and smoking choices. The aim of this study is to identify the correlation between alcohol intake and digit ratio (2D:4D), as well as smoking and digit ratio (2D:4D) in university students. Participants were 121 male and 314 female university students. After filling in questionnaire related alcohol and smoking history, 2nd and 4th finger lengths were measured on both hands using vernier callipers with photocopy. This study showed 2D:4D of the males was 0.95, and that of the females was 0.96. There was a significant difference between male and female in digit ratio. The digit ratio according alcohol intake level significantly differed in only women's left hand. The digit ratio according smoking level significantly differed in only men's left hand. Moreover, The digit ratio was negatively associated with alcohol intake and smoking. The results of this study suggest that the digit ratio (2D:4D) affected with fetal testosterone concentration is negatively related to alcohol intake and smoking. Therefore, the digit ratio would be used in preventive program of alcohol intake and smoking of adolescent, or in antialcoholism /smoking cessation program as a biological basic data.
Keywords
Alcohol intake; Smoking; 2D:4D; University student;
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