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International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

SUWANLIKHID, Nadthaganya et al. Sex and Stature Estimation from Adult Lumbar Vertebrae in a Thai Population Based on Image Analysis. Int. J. Morphol. [online]. 2020, vol.38, n.6, pp.1651-1656. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022020000601651.

Although molecular techniques evolved considerably in last years, anthropological methods of assessing skeletal remains, continues to be an important tool in the identification process in medico legal investigations. The objective of this study was to develop a discriminant function equation for estimating sex and stature using several measurements of lumbar vertebrae in a Thai population. We studied 150 lumbar columns (75 male and 75 female) age range of 22 to 89 years from the Forensic Osteology Research Center, Chiang Mai University, Thailand. The quantitative variables with sex were analyzed by the discriminant function analysis and that with stature were calculated using linear regression. The pixel density of the major axis of the trabecular surface of superior endplate of the first lumbar vertebra had the most accuracy in sex determination. The regression equation with quantitative variables in stature estimation described 32.3 % of the total variance with standard error of estimate of 7.736 cm. Lumbar vertebrae can be used as part of the stature and sex quantitatively and qualitatively estimating in Thais incomplete skeletal remains.

Keywords : Forensic science; Image analysis; Lumbar vertebrae; Sex estimation; Stature estimation; Thai.

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