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Weight Growth Velocity and Neurodevelopmental Outcomes in Extremely Low Birth Weight Infants

Author

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  • Hidehiko Maruyama
  • Naohiro Yonemoto
  • Yumi Kono
  • Satoshi Kusuda
  • Masanori Fujimura
  • Neonatal Research Network of Japan

Abstract

Introduction: This study aimed to assess whether weight growth velocity (WGV) predicts neurodevelopmental outcomes in extremely low birth weight infants (ELBWIs). Methods: Subjects were infants who weighed 501–1000 g at birth and were included in the cohort of the Neonatal Research Network of Japan (2003–2007). Patel’s exponential model (EM) method was used to calculate WGV between birth and discharge. Assessment of predictions of death or neurodevelopmental impairment (NDI) was performed at 3 years of age based on the WGV score, which was categorized by per one increase in WGV. Multivariate logistic regression analysis was used to calculate adjusted odds ratios and their 95% confidence intervals (95%CI). Results: In the 2961 ELBWIs assessed, the median WGV was 10.5 g/kg/day (interquartile, 9.4–11.9). With the categorical approach, the adjusted odds ratios for death or NDI with WGV scores of 6 and 7 were 2.41 (95%CI, 1.60–3.62) and 1.81 (95%CI, 1.18–2.75), respectively, relative to the reference WGV score of 10. WGV scores ≥8 did not predict death or NDI. Conclusions: WGV scores

Suggested Citation

  • Hidehiko Maruyama & Naohiro Yonemoto & Yumi Kono & Satoshi Kusuda & Masanori Fujimura & Neonatal Research Network of Japan, 2015. "Weight Growth Velocity and Neurodevelopmental Outcomes in Extremely Low Birth Weight Infants," PLOS ONE, Public Library of Science, vol. 10(9), pages 1-12, September.
    • Handle: RePEc:plo:pone00:0139014
    DOI: 10.1371/journal.pone.0139014
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