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Year : 2013  |  Volume : 12  |  Issue : 2  |  Page : 68-74

Morphological changes of the human pinna in relation to age and gender of Urhobo people in Southern Nigeria

Department of Human anatomy and Cell Biology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Nigeria

Correspondence Address:
D.E.O. Eboh
Department of Human anatomy and Cell Biology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1596-2393.127964

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Introduction: The knowledge of anthropometry of normal human ear and symmetry is required for the timing of surgical reconstructions, when the contra lateral organ cannot be used as a template and for the design of hearing aid instruments. Ear prints have a potential for personal identification, and reference anthropometric data that consider age and sex related modifications are necessary. Purpose of the study: The purpose of this study was to measure the morphological length and width of the pinna and ear lobe among the Urhobo people of Southern Nigeria (aged 6 to 60 years). Materials and Methods: This descriptive cross-sectional study adopted the multistage sampling technique. The study subjects comprised 368 Urhobo individuals (191 males and 177 females). Results: Total ear length, Ear width, Lobular length and Lobular width, were measured with digital vernier caliper (in millimeter) and recorded in a proforma. The mean total ear length, ear width, lobular length, and lobular width across the entire cohort for both left and right sides were 56.79 ± 4.26 mm, 30.47 ± 1.99mm, 15.36 ± 1.99mm and 16.12 ± 1.66mm respectively. Pearson's correlations between right and left sides in each of the parameters were positive and highly significant (P = 0.001). The effect of age on the parameters measured as analyzed with two-way factorial ANOVA showed statistical significance (P = 0.001) on both sides. The effect of gender on the parameters measured reached statistical significance only in the cases of lobular length on the right (P = 0.03) and lobular length on the left (P = 0.01); other parameters were not significant (P > 0.05). Conclusion: This will be useful in surgery, forensic human identification and product designs.

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