Clinical Sobriety Assessment by Emergency Physicians in Blunt Trauma Patients with Acute Alcohol Exposure |
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Authors: | Simon A. Mahler MD Sanjay Pattani MD MSHA Jesse Standifer MSIII Gloria Caldito PhD Steven A. Conrad MD PhD Thomas C. Arnold MD |
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Affiliation: | † Department of Emergency Medicine, University of Maryland, Baltimore, Maryland; Department of Emergency Medicine, Louisiana State University Health Sciences Center, Shreveport, Louisiana |
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Abstract: | Background: Alcohol use increases injury risk and severity. However, few studies have evaluated the ability of emergency physicians (EPs) to accurately determine sobriety. Objectives: To determine the predictive value of clinical sobriety assessment by EPs in blunt trauma patients with acute alcohol use. Materials and Methods: Blunt trauma patients, aged 18–65 years with suspected acute alcohol use, were prospectively enrolled in the study. EPs assessed study subjects before sample collection for blood alcohol level (BAL) and urine drug screen measurement. Alcohol exposure was considered significant if BAL was ≥ 80 mg/dL. Sobriety (non-significant alcohol exposure) was defined as a BAL < 80 mg/dL. EP sobriety assessment was compared to measured BAL and predictive values were calculated. Agreement on significance of alcohol exposure occurred if EP-estimated BAL > 80 mg/dL agreed with measured BAL > 80 mg/dL, or estimated BAL < 80 mg/dL agreed with measured BAL < 80 mg/dL. Chi-squared analysis was used to compare the proportion of correct physician assessments among patients with sobriety and those with significant alcohol exposure. Results: Of 158 enrolled subjects, 153 completed clinical assessment. EP assessment had a predictive value of 83% (95% confidence interval [CI] 77–90%) for significant alcohol exposure and 69% (95% CI 60–78%) for sobriety. Agreement on the significance of alcohol exposure was 82% (125/153; 95% CI 76–88%). EPs identified 32% (11/34; 95% CI 17–48%) of sober patients, but identified 96% (114/119; 95% CI 92–99%) of patients with significant alcohol exposure. EP assessment was significantly less accurate in identifying sober patients (p < 0.01). Conclusions: Emergency physicians identified significant recent alcohol exposure in blunt trauma patients 96% of the time. However, clinical assessment by EPs in blunt trauma patients with recent alcohol use had only moderate predictive value for significant alcohol exposure. Sober patients were frequently misidentified as having significant alcohol exposure. |
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Keywords: | alcohol sobriety blunt trauma |
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