Adopted children often experience health and well-being disadvantages compared to biological children remaining in their natal households. The degree of genetic relatedness is thought to mediate the l
Given are the total numbers of cases of the six exposure categories that remain after data selection (N births), as well as the number of individuals who survived until Jan. 01, 1725 (A), Jun. 01, 173
Study question: Do the mothers of twins and singletons differ regarding post-partum and old-age mortality? Summary answer: Mothers of twins had twice as high post-partum mortality as mothers of sing
