The risk for delayed development in low birth weight, appropriate for gestational age preterm infants
Abstract
Background Preterm infants, particularly those who have hadsevere asphyxia, hyperbilirubinemia, and sepsis, tend to be at risk
for neurodevelopmental impairment.
Objective The purpose of this study was to assess the risk for de-
layed development in low birth weight (LBW), appropriate for gesta-
tional age (AGA) preterm infants compared to that in term, non-LBW
infants, and to investigate the roles of severe asphyxia, sepsis, and
hyperbilirubinemia as potential risk factors for delayed development.
Methods This was a hospital-based retrospective cohort study
involving preterm, LBW and term, non-LBW infants conducted in
Hasan Sadikin Hospital, Bandung. The Bayley Infant
Neurodevelopmental Screener (BINS) test was performed to as-
sess the risk of delayed development at 3 months of corrected age
for the preterm infants and at 3 months of chronological age for the
term infants. Bivariate analysis using the chi-square test and mul-
tivariate analysis using logistic regression were performed.
Results One hundred and twelve infants fulfilled eligibility criteria,
consisting of 52 preterm, LBW and 60 term, non-LBW infants. Based
on the BINS test, of the preterm, LBW infants, 32 (61%) were at
low risk, 11 (21%) at moderate risk, and 9 (17%) at high risk for
delayed development. Of the control infants, 49 (82%) were at low
risk, 10 (17%) at moderate risk, and 1 (1.7%) at high risk for de-
layed development. Logistic regression analysis showed signifi-
cant association between accompanying diseases such as sepsis
(OR=25.60; P=0.001) and hyperbilirubinemia (OR=16.07; P=0.001)
with delayed development. Despite more than twofold odds for
delayed development in infants with severe asphyxia (OR=2.51)
and LBW-prematurity (OR=2.47), the association was statistically
insignificant (P=0.20 and P=0.15, respectively).
Conclusions In preterm infants appropriate for gestational age,
prematurity and low birth weight alone may or may not predispose
to delayed development at 3 months of age. However, the risk for
delayed development in such infants is increased when sepsis or
hyperbilirubinemia is present
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Accepted 2016-10-08
Published 2016-10-10