Date of Award


Degree Type

Restricted Access Thesis

Degree Name

Master of Public Health


School of Public Health

First Advisor

Kathryn Cardarelli

Second Advisor

Craig Field

Third Advisor

Lori Fischbach


This cross-sectional study examined the associations between impulsiveness, risk perception, alcohol problems, race/ethnicity and alcohol-related intentional injury of 1504 White, Black, and Hispanic trauma patients from the emergency department at a Level 1 Trauma center in Dallas, Texas. After controlling for race/ethnicity, age, gender, education, marital status, drug use, and annual frequency of heavy drinking, injury-related alcohol problems within the past 12 months (OR= 1.10, 95% CI 1.02-1.18) had a moderate effect on intentional injury. Impulsiveness (total score, motor, and non-planning) and alcohol problems (total score, physical, interpersonal, social responsibility, and injury) had moderate effects on intentional injury in univariate analyses, but these effects became null in multivariate analyses. Race/ethnicity had a large effect on injury type in all models considered in the study, with Blacks (estimated ORs ranged from 3.06 to 3.54, 95% CIs ranged from 2.08 to 5.18) and Hispanics (estimated ORs ranged from 2.29 to 2.47, 95% CIs ranged from 1.61 to 3.52) having greater odds of intentional in jury in comparison to Whites in univariate and multivariate analyses. Overall, race/ethnicity and injury-related alcohol problems were the only variable of interest that showed effects on intentional injury. Lack of significant results may be partially explained the use of ICD-9 codes to categorize injury type. Future studies should address limitations and alternatives of using ICD-9 codes to evaluate psychological and behavioral factors.