National register data are of value in studies on miscarriage-Validation of the healthcare register data in Finland.
Nea HelleMaarit NiinimäkiReetta LinnakaariAnna ButGissler MikaOskari HeikinheimoMaarit MentulaPublished in: Acta obstetricia et gynecologica Scandinavica (2022)
The coverage of the NHDR was good concerning identification of miscarriages, different types of miscarriages and non-surgical treatment. Nevertheless, there is a need for clearly defined procedural codes concerning to medical treatment of miscarriage. The register-based data are reliable and practicable for both clinical evaluation and research concerning miscarriage.