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Mammographic density and its interaction with other breast cancer risk factors in an Asian population

CS Wong, GH Lim, F Gao, RW Jakes… - British journal of …, 2011 - nature.com
... Density had a stronger effect after adjustment for BMI, consistent with the negative confounding
effect. Density remained a significant risk factor after adjustment for other risk factors (P<0.001). ...
However, the negative confounding with BMI was only observed for percent density. ...
Cited by 1 - Related articles - All 4 versions

Confounding and Bias in the Attributable Fraction

LA Darrow… - Epidemiology, 2011 - journals.lww.com
... Figure 1 illustrates the general conditions that would lead to positive confounding (confounding
RR >1.0) and negative confounding (confounding RR <1.0), and the resulting direction of bias
in the AF. ... 4), the resulting overall confounding is negative (crude RR <adjusted RR). ...
Cited by 2 - Related articles - All 5 versions

Methylmercury and Brain Development: Imprecision and Underestimation of Developmental Neurotoxicity in Humans

P Grandjean… - Mount Sinai Journal of Medicine: A …, 2011 - Wiley Online Library
... biasing the results toward the null. In addition, as methylmercury exposure usually
originates from fish and seafood that also contains essential nutrients, so-called
negative confounding may occur. Thus, the beneficial effects of the ...
Related articles - All 2 versions

Are apparent negative effects of feeding GM MON810 maize to Atlantic salmon, Salmo salar, caused by confounding factors?

NH Sissener, GI Hemre, SP Lall… - The British journal …, 2011 - Cambridge Univ Press
Abstract The present study was conducted to follow up on apparent differences in growth, relative
organ sizes, cellular stress and immune function in Atlantic salmon fed feed containing GM Bacillus
thuringiensis maize compared with feed containing the non-modified parental maize line. ...
Related articles - All 3 versions

Choice of population structure informative principal components for adjustment in a case-control study

[PDF] from biomedcentral.comG Peloso… - BMC genetics, 2011 - biomedcentral.com
... the population structure is due to an attenuation of the effect due to the population structure
(negative confounding). Positive confounding occurs when the structure is in the same ... are
positively correlated. Negative confounding occurs when the structure is in the opposite ...

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