What is it about?
Estimation of prepregnancy weight and measurement of weight prior to delivery introduce bias into measures of gestational weight gain (GWG). This review discusses sources of bias in measures of GWG and the potential effect of bias on the relationship between adverse pregnancy outcomes associated with GWG.
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Why is it important?
Bias owing to gestational age is an important potential confounder in the relationship between GWG and adverse pregnancy outcomes.
Perspectives
Bias in measures of GWG can be minimized by using measured weight at the first antenatal appointment in early pregnancy rather than self-reported prepregnancy weight and by adjusting for gestational age when the last weight is collected earlier than the delivery date.
A/Prof Kirsten J Coppell
University of Otago
Read the Original
This page is a summary of: Minimization of bias in measures of gestational weight gain, Obesity Reviews, July 2020, Wiley,
DOI: 10.1111/obr.13056.
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