归因危险度或率差 (1)定义:归因危险度(attributable risk,AR)或率差(rate difference)是指暴露组发病率与非暴露组发病率之差,它反映发病归因于暴露因素的程度。
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attributable risk,AR 归因危险度 也称特异危险度或率差(rate difference,RD),是暴露组的发病(死亡)率与非暴露组的发病(死亡)率之差,它表明暴露组与对照组发病危险相差的绝对值。
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第三章 队列研究 信区间 (公式详见教材) 。 2、归因危险度(attrib utable risk,AR) 归因危险度又叫特异危险度或率差(rate difference, RD)。AR是暴露组发病率(或死亡率)与非暴露组发病率(死 亡率)的差值。 RR 和 AR 都是反映暴露
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Tax Rate Difference 税率差异
counting-rate-difference meter 计数率差分计
interest rate difference rent 利差租金
tax rate difference technique 税率差异技术
flow rate difference 流速不均衡
death rate difference 死亡率差异
The 2:1 rate difference is for simplicity — every application will vary and the rates usually change over time.
为了简单起见,我们使用2:1的速率比值——每个应用程序的情况不同,而且速率通常会随时间而发生变化。
By comparison, we find out the concrete influence of the rate difference on investors. The influence can not be ignored.
通过比较,可看出利率差异对投资者行为的具体影响,该影响是不可忽视的。
The total effective rate reached 99 %. And the curative rate difference is notable from pure massage treatment (P< 0. 005).
并与单纯推拿治疗此病进行了疗效对比.治愈率差别显著(P<0.005)。
For example,for men in Swaziland, the difference between the best rate and the worst rate is nine times higher.
VOA: special.2010.05.05
I can give you the form and ask you to rate how attractive you think I am and I can give you the same instruction with a crucial difference "Please wait here.
我给你们这张表格,对我的魅力指数打分,同样的指示,但有一点重要的差别,我对你们说“请在这儿稍等片刻。
Then later on,whenever you want, you can take your money out Meanwhile, they invest the deposits some way or another at a higher interest rate than they pay on the deposits and they make the difference and that's how they make a profit.
然后你什么时候需要你就可以把钱取出来,同时储蓄机构以比给你的利息,更高的利息储蓄,或者投资,这就出现了差价,这就是储蓄机构盈利的方法。
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