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The Credibility of Cephalogram Parameters in Gender Identification From Medico-Legal Relevance Among the Iranian Populatio

Azadeh Memarian, Seyed Reza Saadat Mostafavi, Elham Zarei, Shayesteh Ashrafi Esfahani, Behjat Ghorbanzadeh
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Abstract

Background: Normal cephalogram parameters seem to be gender discriminative and thus applicable in forensic medicine. We assessed validity of cephalogram parameters in gender identification among the Iranian population.
Methods: This cross-sectional study was conducted on 75 Iranian men and 75 Iranian women aged 25 to 54 years. On their first admission, the physicians requested for simple lateral skull X-ray for all participants.
Results: Using area under the ROC curve, gonion-gonion index (AUC=0.741) and vertex- mention index (AUC=0.697) had a moderate value to discriminate male from female gender, while other parameters lacked enough power to differentiate gender. The best cut-off point in gonion-gonion index for discriminating male from female gender was 103.75 with a sensitivity of 74.7% and a specificity of 65.3%. Also, the best cut-off value for vertex-mention index to differentiate two genders was 244.75 with a sensitivity of 74.7% and a specificity of 62.7%. By considering two parameters of gonion-gonion and vertex-mention, it is possible to differentiate males from females with a sensitivity of 82.6% and a specificity of 71.8%.
Conclusion: The two gonion-gonion and vertex-mention indices on cephalogram are applicable for gender discrimination.


Keywords

Cephalogram, Gender, Legal medicine

References

Iscan MY. Global forensic anthropology in the 21st century. Forensic Science International. 2001; 117(1-2):1-6. [DOI:10.1016/S0379-0738(00)00433-3]

Loth SR, Iscan MY. Sex determination. In: Siegel JA, editor. Encyclopedia of Forensic Sciences. Cambridge, Massachusetts: Academic Press; 2012.

Hsiao TH, Tsai SM, Chou ST, Pan JY, Tseng YC, Chang HP, et al. Sex determination using discriminant function analysis in children and adolescents: A lateral cephalometric study. International Journal of Legal Medicine. 2010; 124(2):155-60. [DOI:10.1007/s00414-009-0412-1] [PMID]

Walker PL. Sexing skulls using discriminant function analysis of visually assessed traits. American Journal of Physical Anthropology. 2008; 136(1):39-50. [DOI: 10.1002/ajpa.20776]

Ayoub F, Yehia M, Rizk A, Al-Tannir M, Abi Farah A, Hamadeh G. Forensic norms of female and male Lebanese adults. Journal of Forensic Odonto-Stomatology. 2008; 26(1):18-23. [PMID]

Mohammed RB, Rao DS, Goud AS, Sailaja S, Thetay AA, Gopalakrishnan M. Is Greulich and Pyle standards of skeletal maturation applicable for age estimation in South Indian Andhra children. Journal of Pharmacy and Bioallied Sciences. 2015; 7(3):218-25. [DOI:10.4103/0975-7406.160031]

Scheuer L. Application of osteology to forensic medicine. Clinical Anatomy. 2002; 15(4):297-312. [DOI:10.1002/ca.10028]

Binnal A, Devi BY. Identification of sex using lateral cephalogram: Role of cephalofacial parameters. Journal of Indian Academy of Oral Medicine and Radiology. 2012; 24(4):280-3. [DOI:10.5005/jp-journals-10011-1313]

Memarian A, Aghakhani K, Mehrpisheh S, Fares F. Gender determination from diagnostic factors on anteroposterior pelvic radiographs. Journal of the Chinese Medical Association. 2017; 80(3):161-8. [DOI:10.1016/j.jcma.2016.06.009]

Wu J, Hagg U, Rabie AB. Chinese norms of McNamara’s cephalometric analysis. The Angle Orthodontist. 2007; 77(1):12-20. [DOI:10.2319/021606-62R.1]

Fang F, Clapham PJ, Chung KC. A systematic review of interethnic variability in facial dimensions. Plastic and Reconstructive Surgery. 2011; 127(2):874-81. [DOI:10.1097/PRS.0b013e318200afdb]

Uysal T, Malkoc S. Submentovertex cephalometric norms in Turkish adults. American Journal of Orthodontics and Dentofacial Orthopedics. 2005; 128(6):724-30. [DOI:10.1016/j.ajodo.2004.09.027]

Orish CN, Didia BC. Mandibular geometry of Nigerian skulls: Medico-legal and surgical relevance. Romanian Journal of Functional & Clinical, Macro-& Microscopical Anatomy & of Anthropology. 2014; 13(4):459-63.




DOI: https://doi.org/10.22037/ijmtfm.v9i1(Winter).23016