作者hyde7621 (华硕品质以卵击石)
站内Statistics
标题[问题] 请问一考古题
时间Thu Apr 16 14:08:13 2009
不知道这边能不能问考古题..不行我再自爆
由於自修没人可以问,冒昧上来请教大家
这是高医96年的研究所流行病学考古题
If the risks for subjects exposed to factor A but not B,
and exposed to factor B but not A are 6.4 and 4.2, respectively.
Subjects with neither exposure to factors A nor to factor B are
observed at a risk of 1.8.
(a) Using the additive model of interaction,
what is the risk for subject exposed to both factors?
(b) Using the multiplicative model of interaction,
what is the risk for subjects exposed to both factors?
(c) If subjects exposed to neither factors have an attributable risk of 0,
using the additive model,
what is the risk for subjects exposed to both factors?
(d) If subjects exposed to neither factors have a relative risk of 1,
using the multiplicative model,
what is the risk for subjects exposed to both factors?
还望各路高手可以帮忙解答~
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◆ From: 59.127.159.118
※ 编辑: hyde7621 来自: 59.127.159.118 (04/16 14:09)
1F：推 jangwei:=== 那你为什麽不贴原文? === 04/16 15:29
※ 编辑: hyde7621 来自: 59.127.159.118 (04/16 16:50)
2F：→ kingbee:看来没人回 小的不材 看不懂题目 请问risk 是指? 04/22 16:38
3F：→ kingbee:6.4 的单位 倍率 比值 百分比 ? 04/22 16:38
4F：→ hyde7621:题目就是这样而已..所以我也看不懂 lol 04/23 18:12