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Gender Identification from Thumbprint Ridge Thickness Among Hausa Population of Nigeria Using Likelihood Ratio and Posterior Probability Density

Lawan Hassan Adamu, Magaji Garba Taura, Abdullahi Yusuf Asuku.

Abstract
The objectives of the present study were to identify sex from thumbprints ridge thickness using likelihood ratio and posterior probability density as well as to determine which of the three areas of thumb has more potential in sex determination. This was a cross sectional study which involved 194 subjects (97 males and 97 females) within the age range 18-25 years. Ridge thickness was examined within the 25 mm2 areas (ulnar, radial and proximal) which made up of 1164 areas of the thumbprints. Females exhibited finer ridge count compared to males in ulnar area of both sides of the thumbs. In the radial area females were found to have finer ridge counts as in ulnar side, but with some coarse ridge. For the right proximal ridge thickness, a similar trend to that in the radial area was noticed, however, in the left thumbprint, males tend to have finer ridge counts compared to females. It was noticed that chance of sex inference from likelihood ratio decreased in the following order: proximal ridge thickness < radial ridge thickness < ulnar ridge thickness as ridge thickness decreases in favor of females but left proximal ridge thickness showed increased in likelihood ratio as ridge thickness decreased in favor of males. In conclusion, considering equal probability for each sex, likelihood ratio reveals the applicability of ridge thickness in sex inference among Hausa population. Ridge thickness in ulnar area showed more discrimination power compared to other two areas.

Key words: Forensic sciences, likelihood ratio, Hausa population, ridge thickness, sex inference.


 
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How to Cite this Article
Pubmed Style

Adamu LH, Taura MG, Asuku AY. Gender Identification from Thumbprint Ridge Thickness Among Hausa Population of Nigeria Using Likelihood Ratio and Posterior Probability Density. Nig. J. Basic Appl. Sci.. 2018; 26(1): 115-127.


Web Style

Adamu LH, Taura MG, Asuku AY. Gender Identification from Thumbprint Ridge Thickness Among Hausa Population of Nigeria Using Likelihood Ratio and Posterior Probability Density. www.njbas-udus.com/?mno=285403 [Access: June 20, 2019].


AMA (American Medical Association) Style

Adamu LH, Taura MG, Asuku AY. Gender Identification from Thumbprint Ridge Thickness Among Hausa Population of Nigeria Using Likelihood Ratio and Posterior Probability Density. Nig. J. Basic Appl. Sci.. 2018; 26(1): 115-127.



Vancouver/ICMJE Style

Adamu LH, Taura MG, Asuku AY. Gender Identification from Thumbprint Ridge Thickness Among Hausa Population of Nigeria Using Likelihood Ratio and Posterior Probability Density. Nig. J. Basic Appl. Sci.. (2018), [cited June 20, 2019]; 26(1): 115-127.



Harvard Style

Adamu, L. H., Taura, . M. G. & Asuku, . A. Y. (2018) Gender Identification from Thumbprint Ridge Thickness Among Hausa Population of Nigeria Using Likelihood Ratio and Posterior Probability Density. Nig. J. Basic Appl. Sci., 26 (1), 115-127.



Turabian Style

Adamu, Lawan Hassan, Magaji Garba Taura, and Abdullahi Yusuf Asuku. 2018. Gender Identification from Thumbprint Ridge Thickness Among Hausa Population of Nigeria Using Likelihood Ratio and Posterior Probability Density. Nigerian Journal of Basic and Applied Sciences, 26 (1), 115-127.



Chicago Style

Adamu, Lawan Hassan, Magaji Garba Taura, and Abdullahi Yusuf Asuku. "Gender Identification from Thumbprint Ridge Thickness Among Hausa Population of Nigeria Using Likelihood Ratio and Posterior Probability Density." Nigerian Journal of Basic and Applied Sciences 26 (2018), 115-127.



MLA (The Modern Language Association) Style

Adamu, Lawan Hassan, Magaji Garba Taura, and Abdullahi Yusuf Asuku. "Gender Identification from Thumbprint Ridge Thickness Among Hausa Population of Nigeria Using Likelihood Ratio and Posterior Probability Density." Nigerian Journal of Basic and Applied Sciences 26.1 (2018), 115-127. Print.



APA (American Psychological Association) Style

Adamu, L. H., Taura, . M. G. & Asuku, . A. Y. (2018) Gender Identification from Thumbprint Ridge Thickness Among Hausa Population of Nigeria Using Likelihood Ratio and Posterior Probability Density. Nigerian Journal of Basic and Applied Sciences, 26 (1), 115-127.








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