Yassai M B, Malek F
J Trop Pediatr. 1989 Oct;35(5):247-9. doi: 10.1093/tropej/35.5.247.
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.
对德黑兰出生的256名男婴和294名女婴的脐带血清维生素A值进行了测定。脐带血清维生素A的平均 值（微克/分升±标准差）为24.04±6.87，范围为3.16至49.71微克/分升。男婴脐带血清维生素A的平均 值显著低于女婴（P<0.001），男婴血清维生素A水平低（低于20微克/分升）的患病率高于女婴（分别 为35%和21%）。血清视黄醇值随出生体重逐渐升高。早产新生儿的血清维生素A平均值显著低于足月 新生儿。对年龄超过35岁的母亲而言，脐带血清视黄醇与胎次之间的线性相关性r值显著。
