The Effect of Pre-Trauma Alcohol Use on Post-Traumatic Quality of Life in Severely Injured Trauma Patients
Abstract Background From one third up to half of all injured patients admitted to emergency rooms have a positive blood alcohol level (BAL). Frequent alcohol use also has negative effects on a person’s quality of life. Even though alcohol use among injury patients is common, the effects of pre-injury alcohol use on Health-Related Quality of Life (HR-QoL) have not previously been studied. The primary objective of this study was to evaluate whether pre-injury alcohol use has an influence on an injured patient’s HR-QoL and reported problems. A secondary objective was to compare injured patient’s HR-QoL with the population norm of Finland. Methods Retrospective analysis of all trauma patients treated at Tampere University Hospital’s (TAUH) Intensive Care Unit (ICU) or High Dependence Unit (HDU) in 2013. The following inclusion criteria were used: patient treated at TAUH’s ICU or HDU, age ≥ 18 years, NISS ≥ 16 and possesses a valid Finnish personal identification number to enable comprehensive follow-up. From a total of 373 patients, 227 patients met the inclusion criteria. HR-QoL was assessed with the EQ-5D questionnaire during the patients’ stay in the ICU/HDU and one year after the injury. The EQ-5D index value was further compared with the index values of the age-matched population norms of Finland. Results Thirty-four percent (77/227) of all patients tested positive for alcohol at the time of the injury with a mean blood alcohol content (BAC) of 1.9 g/L. Twenty-nine patients (N= 29/227) died within 1 year of injury, and therefore 198 patients were contacted for post-injury EQ-5D questionnaires. Complete data sets with both pre- and post-injury EQ-5D questionnaires were available for 111 (56%) patients. Patients with positive BAL expressed notably more anxiety and depression (45%) before trauma compared to both patients with negative BAL (11%) and the reference population of Finland (14%). Overall, pre-injury HR-QoL was also poorer in BAL positive patients than BAL negative patients. The amount of anxiety and depression in BAL positive patients decreased after injury. In both groups, the relative number of reported problems after injury exceeded the relative number of reported problems of the reference population of Finland in all five EQ-5D dimensions. Conclusions Patients with positive BAL upon admission report overall lower HR-QoL than patients with negative BAL. This finding is most likely explained by the excessive amount of anxiety and depression, which had decreased one year after injury. We speculate that this may partly be explained by a possible reduction in alcohol use, which has been reported to happen in injury patients. As has previously been reported, the impact of severe injury on post-injury QoL in general is detrimental and long-lasting and overall HR-QoL remains lower than the population norm.