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Factors Associated with Self-Estimated Breath Alcohol Concentration Among Bar Patrons.
Alcohol Clin Exp Res 2017; 41(8):1492-1501AC

Abstract

BACKGROUND

Few studies have examined the context in which drinkers underestimate their breath alcohol concentration (BrAC) in natural drinking environments. This study examined factors associated with bar patrons' self-estimated BrAC in high-risk college town settings.

METHODS

Guided interview and BrAC data were collected from 510 participants recruited as they exited bars located close to large universities: 1 in Florida and 1 in Texas.

RESULTS

Participants with the highest measured BrACs underestimated their BrAC levels the most. Findings from multivariable linear regression analysis indicated that BrAC (std β = 0.014, p < 0.001), number of alcoholic drinks consumed (std β = 0.006, p < 0.01), and perceived drunkenness (std β = 0.024, p < 0.001) had significant positive associations with BrAC self-estimates, where the regression coefficients were scaled by values approximately equal to each variable's interquartile range. Among the 321 participants with BrAC levels ≥ 0.08 g/dl, 21.2% believed their BrAC was below the legal per se driving limit of 0.08 g/dl. Results from a logistic regression analysis indicated that higher levels of perceived drunkenness were associated with better self-recognition that one's BrAC level exceeded the legal driving threshold (OR = 3.312, p < 0.001). Further, participants under 26 years of age had reduced odds of recognizing that their BrAC was greater than 0.079 g/dl (OR = 0.245, p < 0.05).

CONCLUSIONS

These findings highlight the inaccuracy of self-estimated BrAC when drinking, particularly among younger drinkers. Adjusting for BrAC, situational factors were strongly associated with self-estimated BrAC. Future research is needed to better understand how altering drinking environments may improve accuracy of BrAC self-estimates and deter driving after drinking.

Authors+Show Affiliations

Department of Global and Community Health, George Mason University, Fairfax, Virginia.Department of Health and Kinesiology, Texas A&M University, College Station, Texas.Department of Health Behavior and Health Systems, University of North Texas Health Science Center, Fort Worth, Texas.Department of Global and Community Health, George Mason University, Fairfax, Virginia.Department of Global and Community Health, George Mason University, Fairfax, Virginia.Department of Global and Community Health, George Mason University, Fairfax, Virginia.Department of Health Behavior and Health Systems, University of North Texas Health Science Center, Fort Worth, Texas.School of Social Work, San Diego State University, San Diego, California.College of Social Work, The Ohio State University, Columbus, Ohio.Department of Biostatistics and Epidemiology, University of North Texas Health Science Center, Fort Worth, Texas.Department of Health Behavior and Health Systems, University of North Texas Health Science Center, Fort Worth, Texas.Department of Biostatistics and Epidemiology, University of North Texas Health Science Center, Fort Worth, Texas.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28683518

Citation

Rossheim, Matthew E., et al. "Factors Associated With Self-Estimated Breath Alcohol Concentration Among Bar Patrons." Alcoholism, Clinical and Experimental Research, vol. 41, no. 8, 2017, pp. 1492-1501.
Rossheim ME, Barry AE, Thombs DL, et al. Factors Associated with Self-Estimated Breath Alcohol Concentration Among Bar Patrons. Alcohol Clin Exp Res. 2017;41(8):1492-1501.
Rossheim, M. E., Barry, A. E., Thombs, D. L., Weiler, R. M., Krall, J. R., Stephenson, C. J., ... Cannell, M. B. (2017). Factors Associated with Self-Estimated Breath Alcohol Concentration Among Bar Patrons. Alcoholism, Clinical and Experimental Research, 41(8), pp. 1492-1501. doi:10.1111/acer.13428.
Rossheim ME, et al. Factors Associated With Self-Estimated Breath Alcohol Concentration Among Bar Patrons. Alcohol Clin Exp Res. 2017;41(8):1492-1501. PubMed PMID: 28683518.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Factors Associated with Self-Estimated Breath Alcohol Concentration Among Bar Patrons. AU - Rossheim,Matthew E, AU - Barry,Adam E, AU - Thombs,Dennis L, AU - Weiler,Robert M, AU - Krall,Jenna R, AU - Stephenson,Caroline J, AU - Walters,Scott T, AU - Reed,Mark B, AU - Clapp,John D, AU - Suzuki,Sumihiro, AU - Barnett,Tracey E, AU - Cannell,M Brad, Y1 - 2017/07/06/ PY - 2017/01/16/received PY - 2017/06/02/accepted PY - 2017/7/7/pubmed PY - 2018/4/18/medline PY - 2017/7/7/entrez KW - Errors in Self-Estimation of Breath Alcohol Concentration KW - Inaccuracy of Perceived Blood Alcohol Concentration Levels KW - Misperceptions of BAC Self-Estimates SP - 1492 EP - 1501 JF - Alcoholism, clinical and experimental research JO - Alcohol. Clin. Exp. Res. VL - 41 IS - 8 N2 - BACKGROUND: Few studies have examined the context in which drinkers underestimate their breath alcohol concentration (BrAC) in natural drinking environments. This study examined factors associated with bar patrons' self-estimated BrAC in high-risk college town settings. METHODS: Guided interview and BrAC data were collected from 510 participants recruited as they exited bars located close to large universities: 1 in Florida and 1 in Texas. RESULTS: Participants with the highest measured BrACs underestimated their BrAC levels the most. Findings from multivariable linear regression analysis indicated that BrAC (std β = 0.014, p < 0.001), number of alcoholic drinks consumed (std β = 0.006, p < 0.01), and perceived drunkenness (std β = 0.024, p < 0.001) had significant positive associations with BrAC self-estimates, where the regression coefficients were scaled by values approximately equal to each variable's interquartile range. Among the 321 participants with BrAC levels ≥ 0.08 g/dl, 21.2% believed their BrAC was below the legal per se driving limit of 0.08 g/dl. Results from a logistic regression analysis indicated that higher levels of perceived drunkenness were associated with better self-recognition that one's BrAC level exceeded the legal driving threshold (OR = 3.312, p < 0.001). Further, participants under 26 years of age had reduced odds of recognizing that their BrAC was greater than 0.079 g/dl (OR = 0.245, p < 0.05). CONCLUSIONS: These findings highlight the inaccuracy of self-estimated BrAC when drinking, particularly among younger drinkers. Adjusting for BrAC, situational factors were strongly associated with self-estimated BrAC. Future research is needed to better understand how altering drinking environments may improve accuracy of BrAC self-estimates and deter driving after drinking. SN - 1530-0277 UR - https://www.unboundmedicine.com/medline/citation/28683518/Factors_Associated_with_Self_Estimated_Breath_Alcohol_Concentration_Among_Bar_Patrons_ L2 - https://doi.org/10.1111/acer.13428 DB - PRIME DP - Unbound Medicine ER -