Background: Metabolic bone disease of prematurity (MBD) is a common problem among preterm infants. Our previous study identified cholestasis as an important risk factor for the development of MBD. We conducted this study to determine the vitamin D status in preterm infants with MBD and cholestasis. Methods: We retrospectively reviewed medical record of preterm infants evaluated in NICU at Holtz Children’s/Jackson Memorial Hospital between June 2014 and May 2016. Demographic, biochemical data, and vitamin D intake were collected and analyzed. Results: We identified 58 preterm infants (median gestational age 25 weeks) with MBD during this period. Twenty five infants also developed cholestasis. Median serum 25-hydroxyvitamin D level at the time of diagnosis of MBD was similar in cholestasis (C), (29.1 ng/ml, IQR 24.4–33.5), and non-cholestasis (NC), (28.7 ng/ml, IQR 22.7–34.6), group (p = 0.41). At the second measurement, average 6 weeks after the first measurement; median serum 25-hydroxyvitamin D level was lower (p = 0.02) in the C group (31.2 ng/ml, IQR 23.0–38.8) than in the NC group (36.5 ng/ml, IQR 28–45). However, the actual percentage of infants with vitamin D deficiency was similar in both the groups. Conclusion: Most preterm infants with cholestasis and MBD had normal vitamin D status.
ASJC Scopus subject areas
- Pediatrics, Perinatology, and Child Health