Patient and injury characteristicsa.

a For studies presenting data from several patient populations or several sub-analyses, the reported patient characteristics refer to the total patient population.b Presented as mean, mean ± SD, mean (95% CI), median, median (IQR) or as percentage per category, as reported by the authors or as calculated from the available data.c Multiple analyses with two different control groups (no prehospital invasive airway management, intubation in the emergency department) performed in the study. The presented data are for the subpopulation of patients intubated in the emergency department.d Study reports sub-analyses for patients with isolated TBI.GCS: Glasgow Coma Scale; H-AIS: head abbreviated injury scale; ISS: injury severity scale; NR: not reported; TBI: traumatic brain injuryPatient and injury characteristicsa.a. 对于同时展示多患者队列或多亚组分析数据的研究，其报告的患者特征均对应于全部研究患者队列。b. 数据以均值、均值±标准差（Standard Deviation，SD）、均值（95%置信区间（Confidence Interval，CI））、中位数、中位数（四分位数间距（Interquartile Range，IQR））或各类别占比的形式呈现，格式遵从作者报告或基于可用数据计算所得。c. 本研究开展了针对两种不同对照组（院前未实施有创气道管理、急诊科气管插管）的多组分析，本次展示的数据对应于急诊科气管插管的患者亚队列。d. 本研究报告了单纯创伤性脑损伤（Traumatic Brain Injury，TBI）患者的亚组分析结果。格拉斯哥昏迷量表（Glasgow Coma Scale，GCS）；头部简明损伤定级标准（head abbreviated injury scale，H-AIS）；损伤严重程度评分（injury severity scale，ISS）；NR：未报告（not reported）；创伤性脑损伤（Traumatic Brain Injury，TBI）。患者与损伤特征：a.