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dc.contributor.author | Myburgh, Jolandie![]() |
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dc.contributor.author | L'Abbe, Ericka Noelle![]() |
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dc.contributor.author | Steyn, Maryna![]() |
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dc.contributor.author | Becker, Piet J.![]() |
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dc.date.accessioned | 2013-11-26T09:59:42Z | |
dc.date.available | 2013-11-26T09:59:42Z | |
dc.date.issued | 2013-06 | |
dc.description.abstract | The validity of the method in which total body score (TBS) and accumulated degree-days (ADD) are used to estimate the postmortem interval (PMI) is examined. TBS and ADD were recorded for 232 days in northern South Africa, which has temperatures between 17 and 28 °C in summer and 6 and 20 °C in winter. Winter temperatures rarely go below 0 °C. Thirty pig carcasses, which weighed between 38 and 91 kg, were used. TBS was scored using the modified method of Megyesi et al. [1]. Temperature was acquired from an on site data logger and the weather station bureau; differences between these two sources were not statistically significant. Using loglinear random-effects maximum likelihood regression, an r2 value for ADD (0.6227) was produced and linear regression formulae to estimate PMI from ADD with a 95% prediction interval were developed. The data of 16 additional pigs that were placed a year later were then used to validate the accuracy of this method. The actual PMI and ADD were compared to the estimated PMI and ADD produced by the developed formulae as well as the estimated PMIs within the 95% prediction interval. A validation of the study produced poor results as only one pig of 16 fell within the 95% interval when using the formulae, showing that ADD has limited use in the prediction of PMI in a South African setting. | en_US |
dc.description.librarian | hb2013 | en_US |
dc.description.librarian | ay2013 | en |
dc.description.sponsorship | NRF (National Research Foundation of South Africa) and Navkom (University of Pretoria). | en_US |
dc.description.uri | http://www.sciencedirect.com/science/article/ | en_US |
dc.identifier.citation | Myburgh, J, L'Abbe, EN, Steyn, M & Becker, PJ 2013, 'Estimating the postmortem interval (PMI) using accumulated degree-days (ADD) in a temperate region of South Africa', Forensic Science International : Genetics, vol. 229, vol. 1-3, pp.165.e1–165.e6. | en_US |
dc.identifier.issn | 1872-4973 (print) | |
dc.identifier.issn | 1878-0326 (online) | |
dc.identifier.other | 10.1016/j.forsciint.2013.03.037 | |
dc.identifier.uri | http://hdl.handle.net/2263/32616 | |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | © 2013 Elsevier. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Forensic Science International : Genetics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Forensic Science International : Genetics , vol. 229, no.1-3, 2013, doi.: 10.1016/j.forsciint.2013.03.037 | en_US |
dc.subject | Forensic anthropology | en_US |
dc.subject | Postmortem interval | en_US |
dc.subject | Decomposition | en_US |
dc.subject | Pig models | en_US |
dc.subject | Total body score (TBS) | en_US |
dc.subject | Accumulated degree-days (ADD) | en_US |
dc.subject.lcsh | Postmortem changes -- South Africa | en |
dc.subject.lcsh | Forensic sciences -- South Africa | en |
dc.title | Estimating the postmortem interval (PMI) using accumulated degree-days (ADD) in a temperate region of South Africa | en_US |
dc.type | Postprint Article | en_US |