Title "Predicting drinking change following Screening and Brief Interventions (SBI) for alcohol-involved trauma patients." Poster session presented at the 2008 Joint Scientific Meeting of the Research Society on Alcoholism and the International Society for Biomedical Research on Alcoholism (RSA/ISBRA), Washington, DC.
Objectives: The goal of this study was to determine if baseline readiness to change drinking behavior and other Transtheoretical Model (TTM) variables were predictive of change in drinking after a screening and brief intervention for alcohol problems following trauma center (TC) admission. Of interest also was what effect attribution of injury to one's drinking had above and beyond readiness and Transtheoretical Model variables in predicting drinking change.
Methods: The current study is part of a larger study of approximately 500 TC patients identified as having problematic drinking behavior who were randomized into one of two brief interventions for reducing drinking, both yielding similar outcomes (Soderstrom et al, 2007). This secondary analysis focuses on patients reporting drinking at the time of injury (N = 254). At TC admission participants were assessed on their motivational readiness to change, self-efficacy to reduce drinking behavior, decisional balance considerations for change (pros for change minus cons for change), and extent of attribution of injury to drinking. Drinking behavior was assessed at baseline and 6 months following TC admission, and measured by self-reported number of drinks consumed in the previous 90 days. Outcome was defined as the change in number of drinks in the prior 90 days from baseline to follow-up.
Results: On average participants reported a reduction in drinking from baseline to follow-up (mean change = -149.7 drinks, SD 198.3) in the three months prior. The set of variables significantly predicted change in drinking [F (4, 249) = 7.99, P<.01], accounting for 11.4% of the variance in drinking change (R2 = .114). Readiness for change, alcohol reduction self-efficacy, and decisional balance considerations favoring change significantly predicted drinking change, while attribution of injury to one's drinking did not.
Conclusion: These findings suggest that TTM-related constructs predict change in drinking behavior following alcohol-involved traumatic injuries and may be useful to identify trauma patients who may need more intensive intervention to reduce drinking.