TY  - JOUR
PY  - 2017//
TI  - Factors associated with self-estimated breath alcohol concentration among bar patrons
JO  - Alcoholism: clinical and experimental research
A1  - Rossheim, Matthew E.
A1  - Barry, Adam E.
A1  - Thombs, Dennis L.
A1  - Weiler, Robert M.
A1  - Krall, Jenna R.
A1  - Stephenson, Caroline J.
A1  - Walters, Scott T.
A1  - Reed, Mark B.
A1  - Clapp, John D.
A1  - Suzuki, Sumihiro
A1  - Barnett, Tracey E.
A1  - Cannell, M. Brad
SP  - 1492
EP  - 1501
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. <br><br>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. <br><br>RESULTS: Participants with the highest measured BrACs underestimated their BrAC levels the most. <br><br>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. <br><br>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). <br><br>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.<br><br>Copyright © 2017 by the Research Society on Alcoholism.<p />  <p>Language: en</p>
LA  - en
SN  - 0145-6008
UR  - http://dx.doi.org/10.1111/acer.13428
ID  - ref1
ER  -