title: Newborns vitamin A in relation to sex and birth weight.
abstract: Cord serum vitamin A values were determined in 256 male and 294 female neonates born in Tehran. The mean cord serum vitamin A values (micrograms/dl +/- SD) was 24.04 +/- 6.87 and ranged from 3.16 to 49.71 micrograms/dl. Males had significantly lower mean cord serum vitamin A values than females (P less than 0.001), and the prevalence of low serum vitamin A (below 20 micrograms/dl) was higher in male neonates than female ones (35 and 21 per cent, respectively). Serum retinol values increased gradually with birth weight. The mean serum vitamin A for premature neonates was significantly lower than term neonates. A significant r value for the linear correlation between cord serum retinol and parity was obtained for mothers aged more than 35 years.
authors.forename: M B
authors.initials: MB
authors.lastname: Yassai
authors.forename: F
authors.initials: F
authors.lastname: Malek
mesh_terms: D001724:Birth Weight / Q000502:physiology*; D003906:Developing Countries; D005260:Female; D006801:Humans; D007231:Infant, Newborn / Q000097:blood*; D007492:Iran; D008297:Male; D012016:Reference Values; D012737:Sex Factors; D014801:Vitamin A / Q000097:blood*
chemical_list: D014801:Vitamin A