Joint effects on cancer risk of age at c
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Grethe Albrektsen; Ivar Heuch; Gunnar Kvåle
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Article
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1999
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John Wiley and Sons
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English
⚖ 131 KB
👁 3 views
In previous studies of female cancer risk, we introduced a new method for circumventing the problem of collinearity in age-adjusted analysis of the joint effects of age at birth and time since birth. The basic idea was to estimate the pure age effect considering nulliparous women, assuming that the