DOI: http://dx.doi.org/10.18203/2320-6012.ijrms20150268

Application of external ear morphometry in age prediction: a pilot study

Magaji G. Taura, Lawan H. Adamu, Abdullahi Gudaji, Musa H. Modibbo

Abstract


Background: Information about age and sex that is obviously difficult to characterize can be derived from the shape of the ear which is an important but under-utilized defining feature of the head. The study aims at investigating the correlation between age and ear length, width and index for both left and right sides. The regression equation in estimation of age was formulated.

Methods: A total of 219 subjects consisting of 137 males and 82 females were recruited among Bayero University students for the study. Ear length and width were measured using calibrated transparent ruler. Ear index was calculated as ear width/ ear length ×100. Pearson correlation was used to establish the relationship between age and external ear variables. The data was analysed using SPSS version 16 and P < 0.05 considered as level of significance.

Results: The result shows positive higher correlation in left ear length (r= 0.24, P < 0.001) and the least was found in left ear index (r=0.002, P > 0.05).

Conclusions: A linear equation model for estimation of age from given ear dimension was developed. Ear morphometry can serve as an additional tool in the estimation of age of unknown individual.

 


Keywords


Age, External ear, Hausas, Morphometry, Regression

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References


Brucker MJ, Patel J, Sullivan PK. A morphometric study of the external ear: Age and sex related differences. Plast Reconstr. Surg. 2003;112:647-52.

Meijerman L, van der Lugt C, Maat GJR. Cross-sectional anthropometric study of the external ear. J. Forensic Sci. 2007;52:286–93.

Niemitz C, Nibbrig M, Zacher V. Human ears grow throughout the entire lifetime according to complicated and sexually dimorphic patterns – conclusions from across-sectional analysis. Anthropol Anz. 2007;65:391–413.

Ferrario VF, Sforza C, Ciusa V, Serrao G, Tartaglia GM. Morphometry of the normal human ear: a cross-sectional study from adolescence to mid-adulthood. J. Craniofac Genet Dev Biol. 1999;19:226–33.

Gualdi-Russo E. Longitudinal study of anthropometric changes with aging in an urban Italian population. Homo. 1998;49:241–59.

Sforza C, Dellavia C, Tartaglia GM, Ferrario VF. Morphometry of the ear in Down's syndrome subjects: A three-dimensional computerized assessment. Int J Oral Maxillofa Surg. 2005;34:480-6.

Sforza C, Grandi G, Binelli M, Tommasi DG, Rosati R, Ferrario VF. Age and sex related changes in the normal human ear. Forensic Science International. 2009;100:e1-110.e7

Farkas LG, Hreczko TA, Katic MJ. Craniofacial norms in North American Caucasians from birth (one year) to young adulthood, in: L.G. Farkas (Ed.), Anthropometry of the Head and Face, Raven Press, New York, 1994; 235–241.

Bozkir MG, Karakas P, Yavuz M, Dere F. Morphometry of the external ear in our adult population. Aesth Plast Surg. 2006;30:81–5.

Kalcioglu MT, Toplu Y, Ozturan O, Yakinci C. Anthropometric growth study of auricle of healthy preterm and term newborns. Int J Pediatr Otorhinolaryngo. 2006;l70:121–7.

Barut C, Aktunc E. Anthropometric measurements of the external ear in a group of Turkish primary school students. Aesth Plast Surg. 2006;30:255–9.

Purkait R, Singh P. Anthropometry of the normal human auricle: a study of adult Indian men. Aesth Plast Surg. 2007;31:371–9.

Sharma A, Sidhu NK, Sharma MK, Kapoor K, Singh B. Morphometric study of ear lobule in northwest Indian male subjects. Anat Sci Int. 2007;82:98–104.

Agnihotri G, Singh D. Craniofacial anthropometry in newborns and infants. Iran J Pediatr. 2007;17:332–8.

Azaria R, Adler N, Silfen R, Regev D, Hauben DJ. Morphometry of the adult human earlobe: a study of 547 subjects and clinical application. Plast Reconstr Surg. 2003;111(7):2398-402.

Ito I, Ikeda M, Sueno K, Sugiura M, Suzuki S, Kida A. Anthropometric study on normal human auricle in Japan. Nippon Jibiinkoka Gakkai Kalho. 2001;104(2):165-74.

Ekanem AU, Garba SH, Musa TS, Dare ND. Anthropometric Study of the Pinna (Auricle) among Adult Nigerians Resident in Maiduguri Metropolis. Journal of Medical Sciences, 2010; 10: 176-180.

Coward TJ, Watson RM, Scott BJJ. Laser scanning for the identification of repeatable landmarks of the ears and face. Br J Plastic Surg. 1997;50:308-14.

Ruma P, Singh P. Anthropometry of the Normal Human Auricle: A Study of Adult Indian Men. Journal of Aesth Plast Surg. 2007;31:372-9.

Nathan N, Latham K, Cooper J, Perlyn C, Gozlan I, Thaller SR. Anthropometry of the external ear in children with cleft lip and palate in comparison to age-matched controls. J Craniofac Surg. 2008;19:1391-5.

Tolieth H. Artistic anatomy, dimension and proportions of external ear. Clin Plast Surg. 1978;5:337-45.

Alexander KS, Stott DJ, Sivakumar B, Kang N. A Morphometric study of the human ear. J Plast Reconstr Aesthet Surg. 2010;10:1016.