This use is based on small trials that did not have the statistical power to evaluate accurately important clinical outcomes , including safety 該應(yīng)用是基于一些小型試驗(yàn),這些試驗(yàn)不具備準(zhǔn)確評(píng)估包括安全性等重要臨床轉(zhuǎn)歸的統(tǒng)計(jì)學(xué)效力。
While previous , smaller studies have suggested that cp may be declining in vlbw children , this study is the first with the statistical power to accurately detect prevalence trends 以前曾有小范圍的研究表明極低出生體重嬰兒的腦癱發(fā)病率可能在下降,目前的研究則是第一次借助了統(tǒng)計(jì)學(xué)方法來(lái)精確闡明發(fā)病趨勢(shì)。
百科解釋
The power of a statistical test is the probability that the test will reject the null hypothesis when the null hypothesis is false (i.e.