Early growth outcomes in very low birth weight infants with bronchopulmonary dysplasia or fetal growth restriction
2020
To assess the growth outcomes at 18 months corrected age in very low birth weight (VLBW) infants compared to standardized norms, and in VLBW infants with and without bronchopulmonary dysplasia (BPD) or fetal growth restriction (FGR). In all, 1149 VLBW infants completed anthropometrics at 18 months corrected age. To derive weight, height, and body mass index (BMI) percentiles and z-scores at 18 months, we used the SAS macro from the Centers for Disease Control and Prevention (CDC). z-scores for a child’s sex and age are based on the World Health Organization’s growth charts for children <24 months of age. Female and male VLBW infants had higher body-mass-index (BMI)-for-age z-scores compared to normative data (0.82 and 1.77 respectively). No significant difference was found in BMI-for-age z-scores in BPD and non-BPD (1.76 vs. 2.3; p = 0.4), nor in FGR and non-FGR (1.24 vs. 2.16; p = 0.2). At 18 months corrected age, VLBW infants, including those with BPD or FGR, had BMI-for-age z-scores higher than reference standards. No significant difference was seen comparing BMI-for-age z-scores in the BPD/non-BPD and FGR/non-FGR groups.
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