Evaluation of the mastoid triangle for determining sexual dimorphism: A Saudi population based study

Madadin, Mohammed; Menezes, Ritesh G.; Dhafeeri, Obaid Al; Kharoshah, Magdy A.; Ibrahim, Rana Al; Nagesh, K.R.; Ramadan, Selma Uysal

doi:10.1016/j.forsciint.2015.06.019

Cited by 22 publications

(38 citation statements)

References 5 publications

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“…Madadin et al (2015) evaluated mastoid triangle for estimation of sex in Saudi population and showed that the best method was to include all parameters except for perimeter of mastoid triangle. Madadin et al (2015) achieved 71.4% classification accuracy, which was lower than that achieved by the present study (84.4%) [11].…”

Section: Discussioncontrasting

confidence: 94%

“…The present study showed no difference between the right and left sides in the AMT in both sexes, which was in agreement with Madadin et al (2015). Nevertheless, Kemkes and Gobel (2006) found asymmetry between the right and left sides in the Portuguese sample population [18].…”

Section: Discussionsupporting

confidence: 88%

“…In general, the AMT was statistically different between sexes [11], which were consistent with Saini et al (2012). A study on the North Indians showed that the three sides of mastoid triangle were greater in males than females.…”

Section: Discussionsupporting

confidence: 58%

“…A discriminant function was performed to determine the best parameter between sexes using Wilks' lambda with F=3.84 to enter and F=2.71 to remove. As there was no difference between the right and left sides, the mean of both sides was taken, and a total of five parameters were analyzed in a stepwise discriminant and Cross-validated function analysis [11].…”

Section: Bony Landmarksmentioning

confidence: 99%

“…The mastoid region is highly resistant to physical damage due to its anatomical position and the compact structure of the mastoid bone. This explains the usefulness of mastoid bone in cases, where there is inability to use other metric and morphological methods for the determination of sex in skull [11]. The World Health Organization Fracture Risk Assessment Tool (FRAX) indicated that the most probable fractures are hip fracture and other major osteoporotic fractures such as (spine, forearm, hip, and shoulder), and this was due to chronic inflammation, inactivity, and increased risk of falling [12].…”

Section: Introductionmentioning

confidence: 99%

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Osteometric Estimation of Sex From Mastoid Triangle in Malaysian Population

Ibrahim

Alias

Shafie

et al. 2018

Asian J Pharm Clin Res

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Objective: Determination of sex is one of the most important parameters for conducting biological profile of unknown skeletal remains in anatomical anthropology and forensic medicine. Mastoid bone is useful for the identification of sex, as it is the most protected bone and is resistant to damage, due to its anatomical position at the base of the skull. The aim of this study was to develop new equations for the estimation of sex from mastoid triangle in the Malaysian population.Methods: About 10 parameters were studied on 388 computed tomography scans of crania in 231 males and 157 females. The parameters comprised three sides of mastoid triangle, its perimeter and area on both sides. T-test was used to compare between the right and left sides and between males and females. Stepwise discriminant function was used to reveal the best discriminatory parameter and its classification accuracy.Results: Comparison of means by T-test revealed no difference between the right and left sides in both sexes. T-test showed a significant difference between males and females for all parameters. Perimeter of mastoid triangle was found to be the best parameter by stepwise discriminant analysis. The equation based on perimeter of mastoid triangle was developed with 84.4% classification accuracy.Conclusion: The developed equation could be used to assess sexual dimorphism of fragmented Malaysian crania with intact mastoid region. The achieved cross-validated classification was relatively high compared to that in other previous studies.

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Section: Discussioncontrasting

confidence: 94%

Section: Discussionsupporting

confidence: 88%