Alcohol-related expectancies and assaults among injured drinkers in the emergency department setting.

This study examined the extent to which alcohol-related expectancies were associated with assaults among 278 injured drinkers in the emergency department setting. Results of logistic regression analyses indicated that patients who were male, had high blood alcohol levels and who expected alcohol to make them more careless were more likely to report being assaulted. Conversely, among males, patients who expected to become more powerful and aggressive when drinking were less likely to be assaulted. These findings suggest that helping patients understand how expectancies surrounding alcohol use shape drinking and its behavioral concomitants may circumvent their risk for future assaults.

Alcohol expectancies as a mediator of the relationship between injury and readiness to change drinking behavior.

There is a well-established relationship between alcohol expectancies and drinking behavior. The purpose of the present study was to extend the literature by examining the role of alcohol expectancies in determining readiness to change drinking behavior among injured emergency department patients who screened positive for hazardous drinking. Negative expectancies were found to partially mediate the relationships of alcohol-related injuries and injury aversiveness to readiness to change drinking behavior. Results suggest that negative alcohol expectancies are a potential means of increasing patients' readiness to change drinking behavior.

Gender, health beliefs, health behaviors, and alcohol consumption.

We conducted a study of the relationship between health beliefs, health practices, and alcohol consumption among women and men using the Health Belief Model (HBM). The study sample (N = 41,104) was drawn from the 1990 National Health Interview Survey. A 15% random sample was selected from the total data set for the purpose of selecting variables. Alcohol consumption was defined as a health-related behavior and was regressed on demographic characteristics, health beliefs, and health practices. Quantity and frequency of alcohol consumption were assessed for each gender, using the HBM. The HBM explained similar amounts of the variance in alcohol use for women and men. Quantity of alcohol consumed accounted for more variance than did frequency of consumption. We conclude that health beliefs and behaviors are related to alcohol consumption after adjustment for demographic characteristics, and that differences exist between perceived risks and behaviors for both women and men.

Analysis of alcohol use clusters among subcritically injured emergency department patients.

OBJECTIVES: 1) To cluster patients according to self-reported drinking patterns using cluster analysis; 2) to externally validate clustered groups on variables related to drinking but not used in the cluster analysis; and 3) to use the clustered patients' responses to alcohol consumption questions to develop a brief screening tool emergency physicians can use to identify patients in need of referral or intervention related to potentially hazardous alcohol consumption. METHODS: A self-report battery was administered to 95 subcritically injured patients. Patients also were saliva alcohol-tested upon arrival to the ED. Using the patients' self-reported quantity, frequency of alcohol consumption, and frequency of having > or = 6 drinks on a drinking occasion, patients were categorized into 3 groups using cluster analysis. The 3 clusters were externally validated using injury-related variables, alcohol-related consequences, and the patients' reported readiness to change drinking. A screening tool was developed using cutoff values reported by the patients' answers to drinking pattern questions. RESULTS: Fifty-nine patients were alcohol-negative, and 36 tested alcohol-positive (i.e., > 4 mmol/L [> 20 mg/dL]) or had elevated scores on an alcohol problem screening instrument. Three distinct drinking pattern clusters were found. Clusters were validated using discriminant function analysis and multivariate analyses of variance to confirm cluster classifications. Steady and high-intensity drinkers reported more alcohol-related negative consequences, and high-intensity drinkers indicated they would consider changing their drinking. The screening tool correctly classified 97% of the patient sample into their respective clusters. CONCLUSIONS: Using the drinking pattern questions in the clustering procedure was effective for grouping injured patients into clusters that could be differentiated on other drinking-related variables. The resulting screening tool can be used in the ED setting to screen patients for further assessment and intervention. The readiness-to-change results support the assertion that the injury event provides a "teachable moment" for subcritically injured patients whose injury may be related to their alcohol consumption.

Identification of hazardous/harmful drinking among subcritically injured patients.

OBJECTIVES: To examine the relationship between a saliva alcohol test (SAT) and hazardous/harmful drinking, as measured by the Alcohol Use Disorders Identification Test (AUDIT), among a sample of subcritically injured patients. METHODS: Patients (n = 78) seeking treatment for a subcritical injury were saliva-tested for alcohol and interviewed regarding their drinking behaviors and related difficulties. Associations of SAT values with AUDIT results were determined. RESULTS: SAT results and hazardous/harmful drinking were not independent events (p < 0.001). Estimates of sensitivity and specificity (using a dichotomous SAT result [> or = 4 mmol/L] to identify positive AUDIT patients) were 65.2% and 83.6%, respectively. SAT-positive people had significantly higher AUDIT scores than did SAT-negative individuals (p < 0.0001). Patients experiencing assault-type injuries were much more likely to be SAT-positive than were patients incurring other types of injury. Discriminant function analysis suggests that AUDIT scores can successfully identify SAT-positive and SAT-negative patients; the analysis accounted for 42.5% of the variance and correctly classified 84.6% of the sample. CONCLUSIONS: The use of an easy-to-administer, noninvasive, routine SAT, among patients presenting for a subcritical injury in a hospital ED, provides a mechanism for the identification of individuals with a history of hazardous/harmful drinking. However, since discrimination of hazardous/harmful drinking is imperfect, some caution is warranted when conducting such screening activities.

Injury as a motivator to reduce drinking.

OBJECTIVES: To identify predictors of readiness to change drinking behavior by minor-injury patients who had positive saliva alcohol tests (SATs) in the ED. To develop and test a model intended to be prognostic of readiness to change, which included predispositional and injury-event-related variables. METHODS: An on-site survey was conducted of minor-injury ED patients sampled consecutively during predesignated periods. Patients were identified as SAT-positive during their screening evaluations. After giving their consent, they were administered a self-report battery that assessed predispositional and injury-event-related variables as well as readiness to change their drinking. Predictors of readiness to change drinking were tested with regression analyses. RESULTS: Twenty-four SAT-positive patients participated; there were 18 men and six women (average age 34 years). Preinjury predispositional variables were by themselves unrelated to the patient's readiness to change while in the ED. Aversiveness of the injury and perception of degree of alcohol involvement were injury-event-related variables predictive of readiness to change (p < 0.008). Negative consequences attributed to drinking prior to the injury event strengthened the association of injury aversiveness and alcohol involvement with readiness to change (p < 0.0075). CONCLUSION: Interventions to decrease drinking in this population should focus on increasing patient awareness of the association between drinking, injuries, and other alcohol-related negative consequences.

Substance use clusters in a college sample: a multitheoretical approach.

Substance use factors were examined and cross-validated in a cluster analytic approach in two independent samples of college students: N = 291 and N = 602. Reported frequency, intensity, and amount of substance use were examined for beer, hard liquor, marijuana, amphetamines, barbiturates, psychedelics, cocaine, and heroin. Variables were reduced using Principal Components Analysis (PCA) to form four substance use composites. Composite scores were entered into two different methods of cluster analysis that each identified four distinct clusters of substance use groups. External validity was obtained by showing that these four groups differed on a set of relevant variables. The four groups served as levels of the independent variable, substance use type, in four MANOVAs examining group differences on peer and family influence, psychosocial functioning, habit acquisition, and self-efficacy. Findings indicate that as frequency and intensity of substance use increased, individuals reported more problems in living, although a causal direction cannot be established. The findings are of potential value in early identification, prevention, and education regarding substance use among college populations.