N Angelakopoulos1, S De Luca2,3, L A Velandia Palacio4, E Coccia5, L Ferrante6, R Cameriere4. 1. School of Dentistry, Division of Cariology and Endodontics and Pediatric Dentistry, University of Geneva, Geneva, Switzerland. 2. Unidad Especial de Identificación Forense, Servicio Médico Legal, Santiago de Chile, Chile. sdeluca@sml.gob.cl. 3. AgEstimation Project, Institute of Legal Medicine, University of Macerata, Macerata, Italy. sdeluca@sml.gob.cl. 4. AgEstimation Project, Institute of Legal Medicine, University of Macerata, Macerata, Italy. 5. Department of Odontostomatologic and Specialized Clinical Sciences (DISCO), Polytechnic University of Marche, Ancona, Italy. 6. Center of Epidemiology, Biostatistics and Medical Information Technology, Department of Biomedical Science and Public Health, Polytechnic University of Marche, Ancona, Italy.
Abstract
AIMS: The evaluation of the cutoff value of I3M = 0.08 for discriminating black South African minors from adults, and its relationship with chronological age. MATERIAL AND METHODS: A sample of 833 panoramic radiographs of healthy black South African subjects (500 females and 333 males), in the age range of 14 to 24 years (mean age 17.67 years in females and 17.42 years in males), was retrospectively evaluated. RESULTS: ICC values were 99.10% (95% CI 97.70 to 99.70%) and 99.20% (95% CI 98.00 to 99.60%), for the intra- and inter-observer reliability, respectively. I3M decreased as the real age gradually increased in both sexes. According to the logistic regression model, the variable sex was not significant when the probability that an individual is 18 years or older was calculated. The I3M = 0.08 was valuable in discriminating between adults and minors. The overall accuracy (ACC = fraction of accurately classified subjects) is 0.90 (95% CI 0.87-0.91); the proportion of correctly classified subjects (Se = sensitivity) is 0.80 (95% CI 0.76-0.84), and specificity (Sp) is 0.95 (95% CI 0.93-0.97). The PPV (predictive positive value) is 0.96 (95% CI 0.95-0.97), and the negative predictive value is 0.76 (95% CI 0.72-0.80). CONCLUSION: The results show that I3M is a valuable method to distinguish subjects who are around legal adult age in South Africa.
AIMS: The evaluation of the cutoff value of I3M = 0.08 for discriminating black South African minors from adults, and its relationship with chronological age. MATERIAL AND METHODS: A sample of 833 panoramic radiographs of healthy black South African subjects (500 females and 333 males), in the age range of 14 to 24 years (mean age 17.67 years in females and 17.42 years in males), was retrospectively evaluated. RESULTS: ICC values were 99.10% (95% CI 97.70 to 99.70%) and 99.20% (95% CI 98.00 to 99.60%), for the intra- and inter-observer reliability, respectively. I3M decreased as the real age gradually increased in both sexes. According to the logistic regression model, the variable sex was not significant when the probability that an individual is 18 years or older was calculated. The I3M = 0.08 was valuable in discriminating between adults and minors. The overall accuracy (ACC = fraction of accurately classified subjects) is 0.90 (95% CI 0.87-0.91); the proportion of correctly classified subjects (Se = sensitivity) is 0.80 (95% CI 0.76-0.84), and specificity (Sp) is 0.95 (95% CI 0.93-0.97). The PPV (predictive positive value) is 0.96 (95% CI 0.95-0.97), and the negative predictive value is 0.76 (95% CI 0.72-0.80). CONCLUSION: The results show that I3M is a valuable method to distinguish subjects who are around legal adult age in South Africa.
Keywords:
Age of majority; Dental age estimation; Legal medicine; South Africa; Third molar maturity index
Authors: Jelena Cavrić; Ivan Galić; Marin Vodanović; Hrvoje Brkić; Jelena Gregov; Serena Viva; Laura Rey; Roberto Cameriere Journal: Int J Legal Med Date: 2016-03-14 Impact factor: 2.686
Authors: N Angelakopoulos; I Galić; S B Balla; H C Kiş; L Gómez Jiménez; G Zolotenkova; M Y P Mohd Yusof; A Hadzić Selmanagić; H Pandey; C Palmela Pereira; J B M Nóbrega; K Hettiarachchi; S M Mieke; A Kumagai; A Gulsahi; K Zelić; N Marinković; J Kelmendi; I Bianchi; I Soriano Vázquez; E Spinas; Y W Velezmoro-Montes; I Oliveira-Santos; Stefano De Luca; I L Arrais Ribeiro; M Moukarzel; R Cameriere Journal: Int J Legal Med Date: 2021-07-06 Impact factor: 2.686
Authors: N Angelakopoulos; S De Luca; L A Velandia Palacio; E Coccia; L Ferrante; V Pinchi; R Cameriere Journal: Int J Legal Med Date: 2019-06-14 Impact factor: 2.686
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