Prevalence and Risk Factors for Osteopenia in Preterm Neonates: A New Study Highlights Feeding Practices as Critical Predictor

A cross-sectional study published in Cureus found that a portion of preterm and low-birth-weight neonates developed osteopenia or metabolic bone disease of prematurity, with feeding practices emerging as a significant predictor.

What Is Osteopenia in Preterm Neonates?

The study analyzed 217 neonates born before 32 weeks of gestation or weighing less than a specific birth weight threshold. Researchers used dual-energy X-ray absorptiometry (DXA) scans to assess bone mineral content and density, defining osteopenia as a Z-score below -2.0 at the corrected term age.

How Common Is Osteopenia in Preterm Infants?

The study reported a prevalence of osteopenia or metabolic bone disease of prematurity among the cohort, with some meeting criteria for severe osteopenia.

What Risk Factors Contribute to Bone Disease in Preterm Neonates?

The study identified several risk factors, including lower birth weight, longer hospital stays, and delayed initiation of enteral feeding. Infants with a lower birth weight had a higher risk of osteopenia compared to those with higher birth weights.

Notably, the research found that neonates who received parenteral nutrition for more than 14 days were 2.3 times more likely to develop bone disease than those who transitioned to enteral feeding earlier.

How Do Feeding Practices Influence Bone Health?

Feeding-related predictors emerged as critical factors in the study. Infants who received human milk exclusively had a lower risk of osteopenia compared to those receiving formula. The study also found that neonates with slower gastric advancement rates—defined as less than a specific volume—were 2.1 times more likely to develop bone disease.

What Are the Implications for Clinical Practice?

The findings underscore the need for routine bone density screening in preterm infants, particularly those with prolonged hospital stays or suboptimal feeding. The study authors recommend initiating early enteral feeding, optimizing nutrient delivery, and monitoring mineral levels to mitigate risks.

What Future Research Is Needed?

While the study highlights feeding practices as a modifiable risk factor, researchers call for larger, longitudinal trials to evaluate the long-term outcomes of early intervention strategies.