| Variation between last-menstrual-period and clinical estimates of gestational age in vital records. | |
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MedLine Citation:
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PMID: 18182378 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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An accurate assessment of gestational age is vital to population-based research and surveillance in maternal and infant health. However, the quality of gestational age measurements derived from birth certificates has been in question. Using the 2002 US public-use natality file, the authors examined the agreement between estimates of gestational age based on the last menstrual period (LMP) and clinical estimates in vital records across durations of gestation and US states and explored reasons for disagreement. Agreement between the LMP and the clinical estimate of gestational age varied substantially across gestations and among states. Preterm births were more likely than term births to have disagreement between the two estimates. Maternal age, maternal education, initiation of prenatal care, order of livebirth, and use of ultrasound had significant independent effects on the disagreement between the two measures, regardless of gestational age, but these factors made little difference in the magnitude of gestational age group differences. Information available on birth certificates was not sufficient to understand this disparity. The lowest agreement between the LMP and the clinical estimate was observed among preterm infants born at 28-36 weeks' gestation, who accounted for more than 90% of total preterm births. This finding deserves particular attention and further investigation. |
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Authors:
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Cheng Qin; Jason Hsia; Cynthia J Berg |
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Publication Detail:
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Type: Journal Article Date: 2008-01-07 |
Journal Detail:
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Title: American journal of epidemiology Volume: 167 ISSN: 1476-6256 ISO Abbreviation: Am. J. Epidemiol. Publication Date: 2008 Mar |
Date Detail:
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Created Date: 2008-03-17 Completed Date: 2008-05-06 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7910653 Medline TA: Am J Epidemiol Country: United States |
Other Details:
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Languages: eng Pagination: 646-52 Citation Subset: IM |
Affiliation:
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Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA. caq9@cdc.gov |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Data Collection* Educational Status Female Gestational Age* Humans Infant Welfare* Infant, Newborn Infant, Premature Maternal Welfare* Menstruation* Pilot Projects Pregnancy Term Birth |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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