Danish registers on aspects of reproduction.

INTRODUCTION

The establishing of three Danish population-based registers, namely the Fertility Database, the Register of Legally Induced Abortions, and the In Vitro Fertilisation register, aimed at providing data for surveying of reproductive outcome.

CONTENT

The registers include information on births, abortions, and assisted reproduction as well as selected characteristics of the women (and men) involved.

VALIDITY AND COVERAGE

Both the validity and coverage of each register are considered of high quality.

CONCLUSION

These registers provide, both individually and in combination, unique opportunities for undertaking detailed and comprehensive research in the field of reproduction.