Determinants of Weight Changes During the First 96 Hours of Life in Full-Term Newborns

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Fonseca, MJ (Author) Other; Severo M (Author) FMUP; Barros H (Author) FMUP; Santos AC (Author) FMUP

Journal

Title: BIRTH-ISSUES IN PERINATAL CARE

Vol. 41

Pages: 160-168

ISSN: 0730-7659

Indexing

ISI Web of Knowledge - 23 Citations

Scopus - 25 Citations

Other information

Authenticus ID: P-009-M30

DOI: 10.1111/birt.12087

Abstract (EN): BackgroundNewborn weight loss (NWL) in the first 3days of life is around 6 percent of birthweight (BW). We aim to describe the determinants of an excessive and insufficient NWL in the first 96hours of life. MethodsA sample of 1,288 full-term singletons without congenital abnormality belonging to Generation XXI birth cohort was selected. Newborns were recruited in 2005-2006 at all public units providing obstetrical and neonatal care in Porto, Portugal. Information was collected by face-to-face interview and additionally abstracted from clinical records. Anthropometrics were obtained by trained examiners and newborn weight change (NWC) was estimated as (weight-BW)/BWx100. We categorized NWL as excessive (below 10th percentile of the sample distribution of NWC: -9.4% of BW), normal (between 10th and 90th percentiles: -9.3 to -4.2%) and insufficient (above 90th percentile: -4.1%). Adjusted odds ratios (OR) and 95 percent confidence intervals (CI) were calculated using multinomial regression models. ResultsExcessive NWL was positively associated with maternal age 40years (OR=3.32, 95%CI 1.19-9.25), maternal education (OR=1.04, 95% CI 1.00-1.09), cesarean delivery (OR=2.42, 95% CI 1.12-5.23), and phototherapy-treated jaundice (OR=1.69, 95% CI 1.00-2.87). Insufficient NWL was positively associated with low BW (OR=2.68, 95% CI 1.13-6.33), and formula/mixed feeding (OR=1.74, 95% CI 1.13-2.66). ConclusionExcessive NWL was positively associated with maternal age and education, cesarean delivery, and phototherapy-treated jaundice. Insufficient NWL reflected child's feeding. As breastfed newborns did not lose weight excessively, but newborns with formula/mixed feeding had insufficient NWL, our study supports that breastfeeding provides excellent nutrition during this period.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9