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A large-scale study of the relationship between blood and breath alcohol concentrations in New Zealand drinking drivers.
J Forensic Sci 2006; 51(1):173-8JF

Abstract

Blood alcohol concentrations (BAC) and corresponding breath alcohol concentrations (BrAC) were determined for 21,582 drivers apprehended by New Zealand police. BAC was measured using headspace gas chromatography, and BrAC was determined with Intoxilyzer 5000 or Seres Ethylometre infrared analysers. The delay (DEL) between breath testing and blood sampling ranged from 0.03 to 5.4 h. BAC/BrAC ratios were calculated before and after BAC values were corrected for DEL using 19 mg/dL/h as an estimate of the blood alcohol clearance rate. Calculations were performed for single and duplicate breath samples obtained using the Intoxilyzer (groups I-1 and I-2) and Seres devices (groups S-1 and S-2). Before correction for DEL, BAC/BrAC ratios for groups I-1, I-2, S-1, and S-2 were (mean+/-SD) 2320+/-260, 2180+/-242, 2330+/-276, and 2250+/-259, respectively. After BAC values were adjusted for DEL, BAC/BrAC ratios for these groups were (mean+/-SD) 2510+/-256, 2370+/-240, 2520+/-280, and 2440+/-260, respectively. Our results indicate that in New Zealand the mean BAC/BrAC ratio is 19-26% higher than the ratio of the respective legal limits (2000).

Authors+Show Affiliations

Environmental Science and Research Limited, PO Box 50-348, Porirua, New Zealand.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16423246

Citation

Gainsford, Allan R., et al. "A Large-scale Study of the Relationship Between Blood and Breath Alcohol Concentrations in New Zealand Drinking Drivers." Journal of Forensic Sciences, vol. 51, no. 1, 2006, pp. 173-8.
Gainsford AR, Fernando DM, Lea RA, et al. A large-scale study of the relationship between blood and breath alcohol concentrations in New Zealand drinking drivers. J Forensic Sci. 2006;51(1):173-8.
Gainsford, A. R., Fernando, D. M., Lea, R. A., & Stowell, A. R. (2006). A large-scale study of the relationship between blood and breath alcohol concentrations in New Zealand drinking drivers. Journal of Forensic Sciences, 51(1), pp. 173-8.
Gainsford AR, et al. A Large-scale Study of the Relationship Between Blood and Breath Alcohol Concentrations in New Zealand Drinking Drivers. J Forensic Sci. 2006;51(1):173-8. PubMed PMID: 16423246.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A large-scale study of the relationship between blood and breath alcohol concentrations in New Zealand drinking drivers. AU - Gainsford,Allan R, AU - Fernando,Dinusha M, AU - Lea,Rodney A, AU - Stowell,Allan R, PY - 2006/1/21/pubmed PY - 2006/4/12/medline PY - 2006/1/21/entrez SP - 173 EP - 8 JF - Journal of forensic sciences JO - J. Forensic Sci. VL - 51 IS - 1 N2 - Blood alcohol concentrations (BAC) and corresponding breath alcohol concentrations (BrAC) were determined for 21,582 drivers apprehended by New Zealand police. BAC was measured using headspace gas chromatography, and BrAC was determined with Intoxilyzer 5000 or Seres Ethylometre infrared analysers. The delay (DEL) between breath testing and blood sampling ranged from 0.03 to 5.4 h. BAC/BrAC ratios were calculated before and after BAC values were corrected for DEL using 19 mg/dL/h as an estimate of the blood alcohol clearance rate. Calculations were performed for single and duplicate breath samples obtained using the Intoxilyzer (groups I-1 and I-2) and Seres devices (groups S-1 and S-2). Before correction for DEL, BAC/BrAC ratios for groups I-1, I-2, S-1, and S-2 were (mean+/-SD) 2320+/-260, 2180+/-242, 2330+/-276, and 2250+/-259, respectively. After BAC values were adjusted for DEL, BAC/BrAC ratios for these groups were (mean+/-SD) 2510+/-256, 2370+/-240, 2520+/-280, and 2440+/-260, respectively. Our results indicate that in New Zealand the mean BAC/BrAC ratio is 19-26% higher than the ratio of the respective legal limits (2000). SN - 0022-1198 UR - https://www.unboundmedicine.com/medline/citation/16423246/A_large_scale_study_of_the_relationship_between_blood_and_breath_alcohol_concentrations_in_New_Zealand_drinking_drivers_ L2 - https://doi.org/10.1111/j.1556-4029.2005.00029.x DB - PRIME DP - Unbound Medicine ER -