请教样本含量计算件（event）是如何计算的。
2020-03-29本站
请教样本含量计算件（event）是如何计算的。。原文是：A total of 190 events were required to achieve 80% power, at a significance level of 5%. To achieve this, a total of 230 patients would be required.
| 留言与评论（共有 0 条评论） |
请教样本含量计算件（event）是如何计算的。。原文是：A total of 190 events were required to achieve 80% power, at a significance level of 5%. To achieve this, a total of 230 patients would be required.
| 留言与评论（共有 0 条评论） |
