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http://dx.doi.org/10.7465/jkdi.2012.23.6.1145

Analysis on characteristics of person with disability using ratio of the lengths of the second to fourth digits  

Kim, Sung-Jin (Rehabilitation Community Center, Wanju Gun)
Shin, Hyun-Uk (Department of Health Care and Science, Jeonju University)
Lee, Byong-Sun (Department of Rehabilitation, Jeonju University)
Choi, Ji-Won (Department of Radiation, Jeonju University)
Choi, Kyounh-Ho (Department of Basic Medical Science, Jeonju University)
Publication Information
Journal of the Korean Data and Information Science Society / v.23, no.6, 2012 , pp. 1145-1154 More about this Journal
Abstract
Recent research has been mostly focused on the differences of prenatal sex hormone could affect the ratio of the lengths of the second to fourth digits (2D:4D) as well as the rate of several physiological characteristics. It has been suggested that digit ratios are thought to be associated with either higher prenatal testosterone levels or greater sensitivity to androgens, or both. However, a study of person with disabilities are rare in Korea. The purpose of this study was to compare patterns of the ratio (2D:4D) of the lengths of the second and fourth digits in persons with disabilities and students without disabilities. Also, we empirically analyze the characteristics of persons with disabilities. We found that finger length ratio (2D:4D) of men with disabilities and student without disabilities were lower than women with disabilities and student without disabilities. Therefore, it could be confirmed that finger length ratio (2D:4D) is sexually dimorphic trait. There were no correlations between finger length ratio (2D:4D) and age group in persons with disabilities. Therefore, as with person without disabilities, the 2D:4D ratio was negatively associated with a growth process of persons with disabilities. Finally, There was no difference correlations between finger length ratio (2D:4D) and level of disability in persons with intellectual disabilities. From this, one possible explanation for this is that if finger length ratio (2D:4D) is related to person with disability then current classification of the level of disability deserves further investigation.
Keywords
Analysis of variance; finger ratio; Kruskal-Wallis test; person with disability;
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