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Birth weight percentile charts based on daily measurements for very preterm male and female infants at the age of 154–223 days
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Manfred Voigt
Published/Copyright:
February 2, 2010
Abstract
Objective: Birth weight percentiles based on weekly measurements are used to assess the nutritional status of preterm infants. However, as preterm infants exhibit a rapid growth rate (up to 20 g/kg/day), their body weight can increase by 15% per week. We calculated birth weight percentiles based on daily measurements, to more precisely classify very preterm infants (gestational age of 154–223 days).
Methods: Data of 23,864 (10,720 females and 13,144 males) very preterm singleton infants with a gestational age of 154–223 days (22–31 completed weeks) were retrieved from the German perinatal statistics of 1995–2000. Percentile curves based on the empirical birth weight data were subjected to three statistical smoothing procedures: cubic regression, local regression (LOESS smoothing), and the LMS method.
Results: Smoothing of the birth weight percentiles using cubic regression produced the smallest residual variance.
Conclusion: Birth weight percentiles based on daily averages allow a more precise assessment of the somatic development of preterm infants.
Received: 2009-6-19
Revised: 2009-10-2
Accepted: 2009-10-12
Published Online: 2010-02-02
Published Online: 2010-02-2
Published in Print: 2010-05-01
©2010 by Walter de Gruyter Berlin New York
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- Errata
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- Congress Calendar
- Announcement
- Announcement
Keywords for this article
Gestational age;
percentiles based on daily measurements;
very preterm infants
Articles in the same Issue
- Editorial
- Recommendations and guidelines for perinatal practice
- Optimization of human milk fortification for preterm infants: new concepts and recommendations
- Review articles
- Fetal growth restriction – from observation to intervention
- From monster to twin reversed arterial perfusion: a history of acardiac twins
- Original articles – Obstetrics
- The relationship between maternal insulin-like growth factors 1 and 2 (IGF-1, IGF-2) and IGFBP-3 to gestational age and preterm delivery
- Detection of ureaplasmas by the polymerase chain reaction in the amniotic fluid of patients with cervical insufficiency
- Effect of maternal clinical chorioamnionitis on neonatal morbidity in very-low birthweight infants: a case-control study
- The frequency and clinical significance of intra-amniotic infection and/or inflammation in women with placenta previa and vaginal bleeding: an unexpected observation
- Evidence for differential regulation of the adipokine visfatin in the maternal and fetal compartments in normal spontaneous labor at term
- Original articles – Fetus
- Birth weight percentile charts based on daily measurements for very preterm male and female infants at the age of 154–223 days
- Increasing rates of preterm twin births coincide with improving twin pair survival
- Estimating the effect of gestational age on test performance of combined first-trimester screening for Down syndrome: a preliminary study
- Original articles – Newborn
- Avoidable mortality in small-for-gestational-age children in the Netherlands
- Incidence of perinatal complications in children with premature craniosynostosis
- Refractive status and ocular axial length in preterm infants without retinopathy of prematurity with regard to birth weight and gestational age
- The use of culture-independent tools to characterize bacteria in endo-tracheal aspirates from pre-term infants at risk of bronchopulmonary dysplasia
- Application of denaturing high-performance liquid chromatography for intestinal microbiota analysis of newborns
- Errata
- Errata
- Congress Calender
- Congress Calendar
- Announcement
- Announcement
