我是英语白痴，用有道自己翻译的，请大神指导一下翻译是不是准确，谢谢了。


Itwas estimated that with 540 events (progressionor death), a two‐sided log‐rank test at a significance level of 5% would have apower of 80% to detect a difference inmedian progression‐free survival of 11 to 14 months (hazard ratio, 0.79).Onthe assumption of an accrual and follow‐up period of 36 months, we planned to includeapproximately 750 patients in the study.一个对数秩双边检验要在0.05的显著水平下，有80%的把握，在11到14个月的时间里检测出中位无进展生存期的差异，需要540例终点事件进行估计。在随后的自然增长的36个月里，我们将有大约750例病人进入研究。