The OQ-45.2 (Outcome Questionnaire-45.2) is a measure of psychological distress that examines patients' emotional states and level of functioning in society. This measure was administered at admission and discharge to inpatients at a level II trauma center with in- and outpatient populations in addition to the BBHI-2 (Brief Battery for Health Improvement-2) and FIM (Functional Independence Measure). Results suggested that patients demonstrated psychological improvements from admission to discharge. In addition, the OQ-45.2 was found to correlate with nearly all subtests of the BBHI-2. Finally, diagnosis, length of stay, and number of psychotherapy sessions were not predictive of improvements on the OQ-45.2 total score, suggesting that this measure can be appropriately used on a heterogeneous medical population.