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主题:【整理】新冠中医成就整理 -- 阴霾信仰

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家园 好吧

那就请解释一下:

The major study limitations included that the study was an observational study based on real-world data rather than a randomized control trial, and the quality of data could be affected by the accuracy and completeness of medical records.

能不能解释清楚,既然这样是上面这样,为何这么肯定有关联呢?

QPT was associated with a substantially lower risk of in-hospital mortality, without extra risk of acute liver injury or acute kidney injury among patients hospitalized with COVID-19.

连RCT都没有,我就奇怪了,这文章的作者,是如何肯定QPT,而不是其他因素有关联的呢?

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