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Background Small for gestational age (SGA) infants are less likely to develop respiratory distress syndrome (RDS), but more likely to develop bronchopulmonary dysplasia (BPD) and have a higher mortality. Our aim was to focus on outcomes of those with a birth weight less than or equal to 750 g. Methods The mortality, BPD severity, necrotising enterocolitis (NEC), home oxygen requirement and length of hospital stay were determined according to SGA status of all eligible infants in a 5-year period admitted within the first 24 h after birth. Results The outcomes of 84 infants were assessed, and 35 (42%) were SGA. The SGA infants were more mature (P<0.001), had a lower birth weight centile (P<0.001) and a greater proportion exposed to antenatal corticosteroids (P=0.022). Adjusted for gestational age (GA), there was no significant difference in mortality between the two groups (P=0.242), but a greater proportion of the SGA infants developed severe BPD (P=0.025). The SGA infants had a lower weight z-score at discharge (-3.64 vs. -1.66) (P=0.001), but a decrease in z-score from birth to discharge was observed in both groups (median -1.53 vs. -1.07, P=0.256). Conclusion Despite being more mature, the SGA infants had a similar mortality rate and a greater proportion developed severe BPD.
Charles et al. (Thu,) studied this question.