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This book addresses methodological aspects of epidemiological studies on maternal drug use in pregnancy. Discussing the existing sources of error and how they can produce incorrect conclusions, it examines various epidemiological techniques and assesses their strengths and weaknesses. These refer both to the identification of outcomes (with special emphasis on congenital malformations) and to the types of exposure (drug use).

Further, the book discusses the problem of confounding and how to handle it, and provides a simple introduction to statistics. Special situations, e.g....

Authored by Bengt Kallen, professor emeritus in embryology at Lund University in Sweden.

​​The subject of this book is to describe the occurrence of congenital malformations among children born and what risk factors exist. Population data are presented for a number of malformations, ascertained with the use of data from the Swedish national health registers for the period 1998-2010 corresponding to some 1.3 million births, together with prospectively collected information on a group of exposures of possible interest. The structure of the analysis is such that it excludes...

Authored by Bengt Kallen, professor emeritus in embryology at Lund University in Sweden.

The subject of this book is to describe the occurrence of congenital malformations among children born and what risk factors exist. Population data are presented for a number of malformations, ascertained with the use of data from the Swedish national health registers for the period 1998-2010 corresponding to some 1.3 million births, together with prospectively collected information on a group of exposures of possible interest. The structure of the analysis is such that it excludes studies of,...