Residential mobility during pregnancy in the north of England.

BMC Pregnancy and Childbirth
Susan HodgsonJ Rankin

Abstract

Many epidemiological studies assign exposure to an individual's residence at a single time point, such as birth or death. This approach makes no allowance for migration and may result in exposure error, leading to reduced study power and biased risk estimates. Pregnancy outcomes are less susceptible to this bias, however data from North American populations indicate that pregnant women are a highly mobile group. We assessed mobility in pregnant women in the north of England using data from the Northern Congenital Abnormality Survey (NorCAS). Data were extracted from NorCAS for 1985 to 2003. Eligible cases had a gestational age at delivery of > or = 24 weeks (a viable delivery) (n = 11 559). We assessed mobility between booking appointment (average gestational age 13 weeks) and delivery for pregnancies where the address at booking appointment and delivery were known. The impacts on mobility of maternal age and area-level socio-economic indicators were explored using standard descriptive statistics. A sensitivity analysis and a small validation exercise were undertaken to assess the impact of missing data on the estimate of mobility. Out of 7 919 eligible cases for whom addresses at booking and delivery were known, 705 (8.9% (95%...Continue Reading

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Citations

May 24, 2012·Journal of Exposure Science & Environmental Epidemiology·Michelle L Bell, Kathleen Belanger
Jun 24, 2010·Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association·Giorgina B PiccoliTullia Todros
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Feb 17, 2019·Journal of Exposure Science & Environmental Epidemiology·P Grace Tee LewisElaine Symanski

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Software Mentioned

NorCAS
SPSS

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