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DOI: 10.1055/s-0038-1636841
Methodological Considerations in the Design of an Obstetric Database Abstracted from Medical Records
The authors would like to thank all of the staff at maternity services in the South Thames Region NHS Trust where this study was conducted for their co-operation and invaluable assistance. In particular to the Deputy Manager of Medical Records for helping access the Trust’s obstetric notes and to Caroline Nickson who helped conduct the survey of current midwifery practice. Financial support was provided by the Dev R fund of the University of Greenwich.Publication History
Publication Date:
17 February 2018 (online)

The quality of maternal information contained within contemporary obstetric notes was investigated by abstracting data from the medical records of multiparous women who were admitted to a major city hospital in the South Thames Region. Potential sources of error were identified by comparing information recorded in different sections of each obstetric notes and within the obstetric notes of consecutive pregnancies. The format of the obstetric notes largely determined which variables were recorded and, to some extent, the accuracy of information collected. However, the quality of the data ultimately depended upon whether each variable was self-reported or directly measured. Self-reported variables were subject to selective omission and subjective bias, while measured variables were susceptible to inaccurate equipment and poor measurement practice. By interviewing a sample of midwives currently involved in antenatal care at the Trust it was possible to confirm that extensive variation in measurement and recording procedures routinely occurred.
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