Serum zinc level in preterm low birth weight babies and its comparison between preterm AGA and preterm SGA babies

M N Islam1, M W Ullah, M Siddika

  • 1Department of Paediatrics, Mymensingh Medical College Hospital, Bangladesh. mnislamdr1@yahoo.com

Insights

Low birth weight (LBW) poses a significant threat to infant survival in Bangladesh. This study found serum zinc levels were low in preterm infants, suggesting supplementation may aid growth.

Area of Science:

  • Neonatal Health
  • Nutritional Science
  • Public Health

Background:

  • Low birth weight (LBW) is a critical public health issue in Bangladesh, significantly impacting neonatal mortality.
  • Persistent LBW presents a severe challenge to child health and survival, often termed a silent emergency.
  • Neonatal mortality rates are disproportionately high among LBW infants.

Purpose of the Study:

  • To investigate serum zinc levels in preterm infants categorized by gestational age and growth parameters.
  • To compare serum zinc concentrations between preterm appropriate for gestational age (AGA) and small for gestational age (SGA) neonates.
  • To explore the potential role of zinc in the early growth of preterm LBW infants.

Main Methods:

  • An observational study conducted at Dhaka Shishu Hospital, Bangladesh (July 2004-June 2005).
  • Serum zinc levels were measured using flame atomic absorption spectrophotometry in two groups: preterm AGA (n=50) and preterm SGA (n=50) neonates.
  • Statistical comparison of serum zinc levels between groups was performed using the Student's t-test.

Main Results:

  • Serum zinc levels were observed to be within the lower limit of the normal range for both preterm AGA (60.2+/-15.2) and preterm SGA (62.1+/-12.4) infants.
  • Preterm AGA infants exhibited slightly lower serum zinc levels compared to preterm SGA infants.
  • The observed difference in serum zinc levels between the two groups was not statistically significant (p>0.05).

Conclusions:

  • Serum zinc levels are low in both preterm AGA and SGA neonates in the study population.
  • Zinc supplementation could potentially promote the growth of preterm LBW infants during their initial months of life.
  • Further research is warranted to confirm the efficacy of zinc supplementation for improving growth outcomes in preterm LBW infants.