Short-term outcomes of very-low-birth-weight infants born to mothers of advanced and very advanced maternal age

J Matern Fetal Neonatal Med. 2022 Dec;35(25):9870-9877. doi: 10.1080/14767058.2022.2065192. Epub 2022 Apr 18.

Abstract

Objective: To evaluate whether advanced maternal age (35-39 years, AMA)/very advanced maternal age (≥40 years, VAMA) impacts neonatal outcomes of very-low-birth-weight (VLBW) infants.

Methods: Data of VLBW infants admitted to our unit were reviewed. Demographic findings and neonatal outcomes were compared among maternal age [(<35 years, not advanced maternal age, n = 329), AMA (n = 209), and VAMA (n = 43)] groups. Univariate and multivariate analyses were performed to identify the associated risk factors for neonatal outcomes.

Result: Mortality and overall morbidities showed no significant intergroup differences, except for massive pulmonary hemorrhage (MPH). Multivariate analysis revealed that AMA/VAMA was not significantly associated with MPH development, while ≥ two doses of surfactant administration was. Higher gestational age and antenatal corticosteroid administration were protective.

Conclusion: AMA/VAMA is not associated with neonatal mortality and morbidities. Since the proportion of AMA/VAMA mothers is expected to increase, perinatal medicine practitioners should focus on approaches before and immediately after birth of such infants.

Keywords: Advanced maternal age; neonatal intensive care unit; outcome; preterm infant; very-low-birth-weight infant.

MeSH terms

  • Adult
  • Female
  • Gestational Age
  • Humans
  • Infant
  • Infant, Newborn
  • Infant, Very Low Birth Weight*
  • Maternal Age
  • Parturition*
  • Pregnancy
  • Retrospective Studies