Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 1055958

Adjusting posterior probabilities to meet predefined accuracy criteria: a proposal for a novel approach to osteometric sex estimation


Jerković, Ivan; Bašić, Željana; Anđelinović, Šimun; Kružić, Ivana
Adjusting posterior probabilities to meet predefined accuracy criteria: a proposal for a novel approach to osteometric sex estimation // Forensic Science International, 311 (2020), 110273, 7 doi:10.1016/j.forsciint.2020.110273 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 1055958 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Adjusting posterior probabilities to meet predefined accuracy criteria: a proposal for a novel approach to osteometric sex estimation

Autori
Jerković, Ivan ; Bašić, Željana ; Anđelinović, Šimun ; Kružić, Ivana

Izvornik
Forensic Science International (0379-0738) 311 (2020); 110273, 7

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
forensic anthropology ; sex estimation ; osteometric methods ; discriminant analysis ; posterior probability ; forensic accuracy

Sažetak
The osteometric methods are the most reliable way to estimate the sex of skeletons when DNA analysis is not used. However, as osteometric studies usually ignore the overlap in male and female skeletal dimensions, they rarely achieve accuracy sufficient for forensic application. To resolve this issue, recent studies suggest sex estimation only when posterior probability (pp) is greater than 0.95, but that approach does not always provide sufficient accuracy and creates a large proportion of unsexed skeleton. Thus, our study aimed to explore whether it is possible to adjust pp on skeletal measurements with pronounced sexual dimorphism to meet 95% accuracy and to enable sex estimation on a reasonable proportion of individuals. From 207 skeletons, we included 65 postcranial measurements and selected 10% of variables with the highest sexual dimorphism. We computed univariate and bivariate discriminant functions using pp threshold of 0.5, 0.95, and the threshold required to achieve accuracy of ≥ 95%. Discriminant functions with pp = 0.5 obtained accuracy of 85%-93%, while those with pp ≥ 0.95 and adjusted posterior probabilities obtained 94%-99%. However, we showed that by selecting a particular threshold, sex could be estimated on a greater proportion of individuals than for pp ≥ 0.95: 42%-86% vs. 24%-62% for univariate and 69%-95% vs. 49%-78% for bivariate functions. Therefore, when developing sex estimation models, we suggest not to use fixed pp level, but to adjust pp to achieve 95% accuracy and to minimize the percentage of unsexed skeletons.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne medicinske znanosti, Sigurnosne i obrambene znanosti, Etnologija i antropologija



POVEZANOST RADA


Ustanove:
KBC Split,
Medicinski fakultet, Split,
Sveučilište u Splitu Sveučilišni odjel za forenzične znanosti

Citiraj ovu publikaciju

Jerković, Ivan; Bašić, Željana; Anđelinović, Šimun; Kružić, Ivana
Adjusting posterior probabilities to meet predefined accuracy criteria: a proposal for a novel approach to osteometric sex estimation // Forensic Science International, 311 (2020), 110273, 7 doi:10.1016/j.forsciint.2020.110273 (međunarodna recenzija, članak, znanstveni)
Jerković, I., Bašić, Ž., Anđelinović, Š. & Kružić, I. (2020) Adjusting posterior probabilities to meet predefined accuracy criteria: a proposal for a novel approach to osteometric sex estimation. Forensic Science International, 311, 110273, 7 doi:10.1016/j.forsciint.2020.110273.
@article{article, year = {2020}, pages = {7}, DOI = {10.1016/j.forsciint.2020.110273}, chapter = {110273}, keywords = {forensic anthropology, sex estimation, osteometric methods, discriminant analysis, posterior probability, forensic accuracy}, journal = {Forensic Science International}, doi = {10.1016/j.forsciint.2020.110273}, volume = {311}, issn = {0379-0738}, title = {Adjusting posterior probabilities to meet predefined accuracy criteria: a proposal for a novel approach to osteometric sex estimation}, keyword = {forensic anthropology, sex estimation, osteometric methods, discriminant analysis, posterior probability, forensic accuracy}, chapternumber = {110273} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


Citati





    Contrast
    Increase Font
    Decrease Font
    Dyslexic Font