From: Administration of zinc to preterm infants with hypozincemia does not reduce serum copper concentrations in most cases: a single-center retrospective observational study
≧ 70 μg/dL
(n = 16)
< 70 μg/dL
(n = 47)
p
Sex
Male
9
35
0.778
Female
7
12
Enteral nutrition
Breast milk
18
0.899
Infant formula
1
3
Breast milk + Infant formula
8
26