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Sex estimation from the talus in a Thai population
Pasuk Mahakkanukrauh1, Sithee Praneatpolgrang1, Sitthiporn Ruengdit1
1Department of Anatomy, Faculty of Medicine, Chiang Mai University, 50120, Thailand.
Forensic Science International
|May 6, 2014
Summary
This study found that trochlear length and breadth of the talus are the most accurate measurements for sex estimation in a Thai population, achieving over 91% accuracy when combined.
Area of Science:
- Forensic Anthropology
- Bioarchaeology
- Human Osteology
Background:
- The talus bone is known for its sexual dimorphism in skeletal sex estimation.
- Previous studies indicate talar length as a key measurement, but this may vary by population.
Purpose of the Study:
- To evaluate the sex estimation potential of the talus in a contemporary Thai population.
- To identify the most sexually dimorphic measurements of the talus for forensic applications.
Main Methods:
- Analysis of 252 tali (126 male, 126 female) from the Chiang Mai University Skeletal Collection.
- Collection of ten osteometric measurements, including standard and experimental variables.
- Application of logistic regression and Receiver Operating Characteristic (ROC) analysis for sex determination.
Main Results:
- Trochlear length and trochlear breadth showed the highest individual accuracies (88.2% and 87.3% respectively).
- Combined measurements of trochlear length and breadth achieved over 91% accuracy for sex estimation.
- ROC analysis confirmed trochlear length and breadth as highly effective discriminators.
Conclusions:
- Trochlear length and breadth are more reliable for talar sex estimation in Thai individuals than talar length.
- These measurements should be considered in the development of sex estimation equations for diverse populations.
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