Kendall A C, Jones E E, Wilson C I, Shinton N K, Elwood P C
Arch Dis Child. 1974 Sep;49(9):736-8. doi: 10.1136/adc.49.9.736.
A double-blind randomized trial of 50 μg folic acid or placebo given from 2 weeks to 6 months to 130 infants of birthweight less than 2·5 kg has been conducted. While only 62 of the babies completed the 6-month follow-up, no significant difference was found between either group in respect of changes in weight, haemoglobin, serum folate, red cell folate, or evidence of infection. It is concluded that infants in this series were receiving adequate amounts of folic acid in their normal diet and did not require supplements.
对130名出生体重低于2.5千克的婴儿进行了一项双盲随机试验,从出生后2周开始至6个月,分别给予50微克叶酸或安慰剂。虽然只有62名婴儿完成了6个月的随访,但两组在体重、血红蛋白、血清叶酸、红细胞叶酸或感染迹象的变化方面均未发现显著差异。得出的结论是,该系列中的婴儿在正常饮食中已摄入足够量的叶酸,无需补充。