median follow-up啥意思？

Despite the established risks of CAD, routine coronary revascularization prior to surgery does not improve perioperative outcomes. In the Coronary Artery Revascularization Prophylaxis trial,48510 patients with CAD scheduled for vascular surgery were randomly assigned to coronary artery revascularization before surgery or no coronary revascularization. Postoperative myocardial infarction within 30 days (12% in the revascularization group vs 14% in the no revascularization group; P = .37) and long-term mortality at a median follow-up of 2.7 years (22% vs 23%, respectively; P = .92) were not different between the groups; however, patients with left main CAD and reduced left ventricular ejection fraction were excluded from the trial.48Based on these data, routine coronary revascularization is not recommended before noncardiac surgery to reduce perioperative MACE.

尽管存在冠心病的风险，术前常规的冠状动脉血运重建术并不能改善围手术期的结果。在冠状动脉血运重建预防试验中，48510名冠心病患者计划接受血管手术，随机分为术前冠状动脉血运重建组和不进行冠状动脉血运重建组。术后30天内心肌梗死（血运重建组为12%，非血运重建组为14%；P=0.37）和中位随访2.7年的远期死亡率（分别为22%和23%；P=0.92）在两组之间没有差异；但是，有左主干冠心病和左心室射血分数降低的患者并未纳入试验。基于这些数据，不建议在非心脏手术前进行常规冠状动脉血运重建术以减少围手术期MACE。

long-term mortality at a median follow-up of 2.7 years ？远期（中位数2.7年）死亡率？

谢谢