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- Title
Accuracy of Identifying Juvenile/Adult Status from Third Molar Development using Prediction Probabilities Derived from Logistic Regression Analysis.
- Authors
Acharya, Ashith B.; Bhowmik, Biyas; Naikmasur, Venkatesh G.
- Abstract
The use of third molars in predicting juvenile/adult status (</≥ 18 years) has important legal ramifications. Third molar development was assessed using Köhler's grading on 268 orthopantomograms of Indian subjects. Logistic regression analysis was applied to determine allocation accuracy of juvenile/adult status and the level of probability that is 'reliable' in predicting juvenile/adult status. Allocation accuracies ranged between 75.8% and 78.2% for the sexes combined, with minimal male-female differences. Adults were categorized more accurately than juveniles, suggesting that Köhler's grading puts Indian juveniles at greater risk of unwarranted punishment. In both sexes, juvenile/adult status was 'reliably' predicted when the probability was >80% using individual third molars (excepting the lower right third molar in males); combining upper and lower third molars on the left/right sides, 'reliable' predictions were possible when the probability was >80% and >90% for females and males, respectively. Overall, 'reliable' juvenile/adult status prediction was achieved in c. 36% of subjects.
- Subjects
FORENSIC sciences; FORENSIC biology; AGE groups; FORENSIC dentistry; CALCIFICATION; MOLARS
- Publication
Journal of Forensic Sciences, 2014, Vol 59, Issue 3, p665
- ISSN
0022-1198
- Publication type
Article
- DOI
10.1111/1556-4029.12366