Differences in Birth Weight for Gestational Age Distributions According to the Measures Used to Assign Gestational Age

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Differences in birth weight for gestational age distributions according to the measures used to assign gestational age.

Population-based standards for infant size for gestational age depend on accurate assessments of birth weight and gestational age; the accuracy of the latter measure has been questioned. The authors sought to explore how different methods of assigning gestational age in vital records data affect distributions of birth weight for gestational age. The 2005 US natality file was used to create 4 me...

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Prediction of Gestational Age According to Fetal Femur Length

SUMMARY Determination of gestational age have several usages in obstetrics and gynecology. The relation between fetal femur length and gestational age has determined in this research using real time sonography. 1000 iranian pregnant women between 12-40 weeks of gestation with accuratic last menstrual period and with out the history of diabetes lllellitus, hypertension, renal disease and fetal ...

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Prediction of Gestational Age According to Biparietal Diameter

SUMMARY Determination of gestational age have several usages in obstetrics and gynecology. The relation between Biparietal Diameter and gestational age has determined in this research using real time Sonography. 904 Iranian pregnant women between 12-40 weeks of gestation with accuratic last menstrual period and without the history of diabetes mellitus, hypertension, renal disease and Fetal an...

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Implausible birth weight for gestational age.

Various rules have been proposed to identify and exclude live births with implausible values of birth weight for gestational age from large perinatal data sets. The authors carried out a preliminary evaluation of common rules by examining the frequency and nature of rule-based exclusions among live births in Canada (excluding Ontario) between 1992 and 1994. There were 625 (0.09%), 133 (0.02%), ...

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[A national birth weight distribution curve according to gestational age in Chile from 1993 to 2000].

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ژورنال

عنوان ژورنال: American Journal of Epidemiology

سال: 2010

ISSN: 0002-9262,1476-6256

DOI: 10.1093/aje/kwp468