Abstract:
:Obtaining gestational data of acceptable validity on whole populations is a considerable challenge, which must be met in order to further epidemiological investigation involving perinatal factors. As the means of estimating gestational duration multiply, routinely available population data pertaining to gestational duration may be conflicting. This exacerbates its reputation for unreliability, which is due primarily to the generally occult nature of conception and secondly to the propensity for data entry errors of the data from which gestational duration is estimated. However, the key to improving reliability may paradoxically lie in the increasing variety of methods for estimating gestational duration, because agreement between independent observations increases the reliability that can be placed on estimates of factors that are inherently difficult to measure. This paper demonstrates that the acceptability of population data for gestational duration can be improved by simple rectification of recurring data entry errors and demanding compatibility of two independent estimates of gestational duration. Compared with the previous algorithm that relied primarily on last menstrual period data, the new algorithm, that considers both antenatal and neonatal indicators of gestational duration, decreased the proportion of births in a geographically defined birth cohort 1986-99 (n=354,216) without a gestational estimate, from 0.5% to 0.03%, halved the number of births of >400 g estimated to occur before 20 weeks, and almost eliminated gestational estimates of >45 weeks.
journal_name
Paediatr Perinat Epidemioljournal_title
Paediatric and perinatal epidemiologyauthors
Blair E,Liu Y,Cosgrove Pdoi
10.1111/j.1365-3016.2004.00562.xsubject
Has Abstractpub_date
2004-07-01 00:00:00pages
270-6issue
4eissn
0269-5022issn
1365-3016pii
PPE562journal_volume
18pub_type
杂志文章abstract:BACKGROUND:During pregnancy, most women do not meet gestational weight gain (GWG) guidelines, potentially resulting in adverse maternal and infant health consequences. Social environment determinants of GWG have been identified, but evidence on the relationship between neighbourhood violence and GWG is scant. Our study...
journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章
doi:10.1111/ppe.12331
更新日期:2017-01-01 00:00:00
abstract::Reference data describing weight, length, and head circumference (anthropometric measurements) at birth were published by Lubchenco and Usher before 1970. Few attempts have been made to investigate whether these data are appropriate for today's cohort of preterm neonates. We analysed anthropometric data for neonates b...
journal_title:Paediatric and perinatal epidemiology
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journal_title:Paediatric and perinatal epidemiology
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章
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更新日期:1990-07-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
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doi:10.1046/j.1365-3016.2002.00402.x
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pub_type: 杂志文章,随机对照试验
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更新日期:2010-01-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章,多中心研究
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更新日期:1999-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1111/j.1365-3016.2008.00980.x
更新日期:2009-03-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章
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更新日期:1993-01-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章
doi:10.1111/j.1365-3016.1993.tb00405.x
更新日期:1993-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1046/j.1365-3016.1999.00215.x
更新日期:1999-10-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章
doi:10.1111/j.1365-3016.1993.tb00391.x
更新日期:1993-04-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章,评审
doi:10.1046/j.1365-3016.2001.00008.x
更新日期:2001-07-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章,多中心研究
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章,多中心研究
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2001-10-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章
doi:10.1111/j.1365-3016.1991.tb00689.x
更新日期:1991-01-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
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更新日期:2007-09-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Paediatric and perinatal epidemiology
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更新日期:1998-04-01 00:00:00
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journal_title:Paediatric and perinatal epidemiology
pub_type: 杂志文章
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