when comparing the risk of HIV between people
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送交者: blackbox 于 2006-12-02, 21:26:33:
回答: The reasoning may be like that article I ZT'd about seat belt 由 HunHunSheng 于 2006-12-02, 20:29:40:
with and without using condom, all covariates including n and m plus interaction terms will be included in a statistical model, that is the usual way people find out evidence of risk factor for diseases of death.
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