@article{ref1,
title="Change in alcohol demand following a brief intervention predicts change in alcohol use: a latent growth curve analysis",
journal="Alcoholism: clinical and experimental research",
year="2022",
author="Gex, Kathryn S. and Acuff, Samuel F. and Campbell, Kevin W. and Mun, Eun-Young and Dennhardt, Ashley A. and Borsari, Brian and Martens, Matthew P. and Murphy, James G.",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="BACKGROUND: The association between behavioral economic demand and various alcohol use outcomes is well-established. However, few studies have examined whether changes in demand occur following a brief alcohol intervention (BAI), and whether this change predicts alcohol outcomes over the long-term. <br><br>METHODS: Parallel process piecewise latent growth curve models were examined in a sample of 393 heavy drinking emerging adults (60.8% women; 85.2% white; M(age) = 18.77) in which two linear slopes represented rates of change in alcohol use, heavy drinking episodes, alcohol-related problems, and demand (intensity and O(max) ) from baseline to 1-month (slope 1) and 1-month to 16-month (slope 2). Mediation analyses were conducted to estimate the effect of a BAI on 16-month alcohol outcomes through slope 1 demand. <br><br>RESULTS: A two-session BAI predicted significant reductions in all five outcomes from baseline to 1-month follow-up. Although no further reduction was observed from 1-month to 16-month follow-up, there was no regression to baseline levels. Slope 1 demand intensity, but not O(max) , significantly mediated the association between BAI and both outcomes, heavy drinking episodes (Est. = -0.23, SE = 0.08, p < 0.01) and alcohol-related problems (Est. = -0.15, SE = 0.07, p < 0.05) at 16-month follow-up. <br><br>CONCLUSIONS: Reducing high valuation of alcohol among heavy drinking emerging adults within the first month is critical for the long-term efficacy of a BAI. A two-session BAI was associated with enduring reductions in alcohol demand, and the change in demand intensity, but not O(max) , was associated with sustained reduction in heavy drinking and alcohol-related problems.<p /> <p>Language: en</p>",
language="en",
issn="0145-6008",
doi="10.1111/acer.14887",
url="http://dx.doi.org/10.1111/acer.14887"
}