History
Traditionally, babies weighing less than a certain amount (which varies between countries) have been classified as having ''low birth weight''. In a given population, low birth weight babies have a significantly higherExplanation
At first sight these findings seemed to suggest that, at least for some babies, having a smoking mother might be beneficial to one's health. However the paradox can be explained statistically by uncovering a ''Evidence
If one corrects and adjusts for the confounding by smoking, via stratification or multivariable regression modelling to statistically control for smoking, one finds that the association between birth weight and mortality may be attenuated towards the null. Nevertheless, most epidemiologic studies of birth weight and mortality have controlled for maternal smoking, and the adjusted results, although attenuated after adjusting for smoking, still indicated a significant association. Additional support for the hypothesis that birth weight and mortality can be acted on independently came from the analysis of birth data fromSee also
*References
* Wilcox, Allen (2001).External links