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A comparison of different sources of information about pregnancy and childbirth

Published online by Cambridge University Press:  31 July 2008

Ann Oakley
Affiliation:
Thomas Coram Research Unit, Institute of Education, University of London
Lynda Rajan
Affiliation:
Thomas Coram Research Unit, Institute of Education, University of London
Penrose Robertson
Affiliation:
Thomas Coram Research Unit, Institute of Education, University of London

Summary

Different methods of obtaining information in medical and social research present problems of interpretation for the researcher. However, there are few systematic studies on the extent of the lack of concordance yielded by different methods. This paper uses data from a randomized controlled trial of social support in pregnancy to examine this issue in relation to three methods of data collection—medical records, home interviews and a postal questionnaire—on the following topics: obstetric history; smoking, alcohol use, number of antenatal hospital visits, bleeding and depression in pregnancy; length of labour; baby's sex, birthweight and neonatal health problems; and ethnicity. Considerable discrepancies are found comparing the different data sources. These suggest that mothers may be more reliable sources of information than medical records, and that the anonymity of a postal questionnaire may provide higher estimates than home interviews on some sensitive topics, such as smoking in pregnancy.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1990

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