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Article: Widmark factors for local Chinese in Hong Kong: A statistical determination on the effects of various physiological factors

TitleWidmark factors for local Chinese in Hong Kong: A statistical determination on the effects of various physiological factors
Authors
KeywordsAlcohol pharmacokinetics
Blood alcohol concentration (BAC)
Hip-flask defence
Peak BAC
Widmark formula
Issue Date2005
PublisherElsevier Ireland Ltd. The Journal's web site is located at http://www.elsevier.com/locate/forsciint
Citation
Forensic Science International, 2005, v. 151 n. 1, p. 23-29 How to Cite?
AbstractThe Widmark formula has been widely adopted in forensic applications to drink driving cases for the last 70 years. It is known that the amount of alcohol consumed and the body weight of the drinkers are important information for the estimation of blood alcohol concentration (BAC). However, the direct application of the Widmark factors derived from Caucasian to the calculation of BAC for the Chinese population often encounters serious challenges. Owing to this inherent weakness, a thorough analysis to determine the theoretical Widmark factors for the Chinese population, r0 at the start of drinking and the practical factors, rpeak, at peak BAC was conducted. In the present study, other factors such as gender, stomach condition and other physiological conditions are taken into account. The determined theoretical Widmark factors, r0, for local Chinese male and female are 0.68 and 0.59 (with BAC in the units of weight/volume), respectively, demonstrating the applicability of the Widmark formula to the Chinese population. The practical factors at peak BAC, rpeak, were also determined to serve the forensic purpose of refuting the "hip-flask" defence in drink driving cases. Findings show that gender and stomach condition are the key factors that could statistically explain the variability of both r0 and r peak. © 2004 Elsevier Ireland Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/83068
ISSN
2015 Impact Factor: 1.95
2015 SCImago Journal Rankings: 1.210
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTam, TWMen_HK
dc.contributor.authorYang, CTen_HK
dc.contributor.authorFung, WKen_HK
dc.contributor.authorMok, VKKen_HK
dc.date.accessioned2010-09-06T08:36:33Z-
dc.date.available2010-09-06T08:36:33Z-
dc.date.issued2005en_HK
dc.identifier.citationForensic Science International, 2005, v. 151 n. 1, p. 23-29en_HK
dc.identifier.issn0379-0738en_HK
dc.identifier.urihttp://hdl.handle.net/10722/83068-
dc.description.abstractThe Widmark formula has been widely adopted in forensic applications to drink driving cases for the last 70 years. It is known that the amount of alcohol consumed and the body weight of the drinkers are important information for the estimation of blood alcohol concentration (BAC). However, the direct application of the Widmark factors derived from Caucasian to the calculation of BAC for the Chinese population often encounters serious challenges. Owing to this inherent weakness, a thorough analysis to determine the theoretical Widmark factors for the Chinese population, r0 at the start of drinking and the practical factors, rpeak, at peak BAC was conducted. In the present study, other factors such as gender, stomach condition and other physiological conditions are taken into account. The determined theoretical Widmark factors, r0, for local Chinese male and female are 0.68 and 0.59 (with BAC in the units of weight/volume), respectively, demonstrating the applicability of the Widmark formula to the Chinese population. The practical factors at peak BAC, rpeak, were also determined to serve the forensic purpose of refuting the "hip-flask" defence in drink driving cases. Findings show that gender and stomach condition are the key factors that could statistically explain the variability of both r0 and r peak. © 2004 Elsevier Ireland Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier Ireland Ltd. The Journal's web site is located at http://www.elsevier.com/locate/forsciinten_HK
dc.relation.ispartofForensic Science Internationalen_HK
dc.rightsForensic Science International. Copyright © Elsevier Ireland Ltd.en_HK
dc.subjectAlcohol pharmacokineticsen_HK
dc.subjectBlood alcohol concentration (BAC)en_HK
dc.subjectHip-flask defenceen_HK
dc.subjectPeak BACen_HK
dc.subjectWidmark formulaen_HK
dc.titleWidmark factors for local Chinese in Hong Kong: A statistical determination on the effects of various physiological factorsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0379-0738&volume=151&spage=23&epage=29&date=2005&atitle=Widmark+factors+for+local+Chinese+in+Hong+Kong:+A+statistical+determination+on+the+effects+of+various+physiological+factorsen_HK
dc.identifier.emailFung, WK: wingfung@hku.hken_HK
dc.identifier.authorityFung, WK=rp00696en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.forsciint.2004.06.032en_HK
dc.identifier.pmid15935939-
dc.identifier.scopuseid_2-s2.0-20444373429en_HK
dc.identifier.hkuros104869en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-20444373429&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume151en_HK
dc.identifier.issue1en_HK
dc.identifier.spage23en_HK
dc.identifier.epage29en_HK
dc.identifier.isiWOS:000230251000004-
dc.publisher.placeIrelanden_HK
dc.identifier.scopusauthoridTam, TWM=7102012763en_HK
dc.identifier.scopusauthoridYang, CT=8520581600en_HK
dc.identifier.scopusauthoridFung, WK=13310399400en_HK
dc.identifier.scopusauthoridMok, VKK=8520581800en_HK

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