Kraus J F, Morgenstern H, Fife D, Conroy C, Nourjah P
Division of Epidemiology, School of Public Health, University of California, Los Angeles 90024.
Am J Public Health. 1989 Mar;79(3):294-9. doi: 10.2105/ajph.79.3.294.
We collected data on all residents of San Diego County, California who were hospitalized for or died from a brain injury in 1981. The objectives were to assess the frequency of blood alcohol concentration (BAC) testing and the associations of BAC prevalence with the external cause of the brain injury and case outcome. We found that high BAC levels were most frequent among brain-injured subjects between the ages of 25 and 44 and among those subjects involved in motor vehicle crashes and assaults. Contrary to expectations, injury severity and hospital mortality were inversely related to BAC level, controlling for other predictors. We believe that these inverse associations might be due to differential rates of BAC testing by severity. Among brain-injured survivors with more severe injuries, however, we found that BAC level was positively associated with the prevalence of physician-diagnosed neurological impairment at discharge and with the length of hospitalization.
我们收集了1981年加利福尼亚州圣地亚哥县所有因脑损伤住院或死于脑损伤的居民的数据。目的是评估血液酒精浓度（BAC）检测的频率，以及BAC患病率与脑损伤外部原因和病例结局之间的关联。我们发现，BAC高水平在25至44岁的脑损伤患者以及那些涉及机动车碰撞和袭击的患者中最为常见。与预期相反，在控制其他预测因素后，损伤严重程度和医院死亡率与BAC水平呈负相关。我们认为，这些负相关可能是由于按严重程度进行BAC检测的比例不同所致。然而，在脑损伤更严重的幸存者中，我们发现BAC水平与出院时医生诊断的神经功能障碍患病率以及住院时间呈正相关。
