Baumslag N, Edelstein T, Metz J
Br Med J. 1970 Jan 3;1(5687):16-7. doi: 10.1136/bmj.1.5687.16.
Folic acid administered to pregnant Bantu, whose diet is low in folate, was associated with a significant reduction in the incidence of prematurity. No such effect could be demonstrated in White patients subsisting on an average Western diet. This suggests that folate deficiency may contribute to the "pregnancy wastage" in populations whose dietary folate intake is low, and is a further indication for folic acid supplementation during pregnancy in these groups.
给饮食中叶酸含量低的怀孕班图妇女补充叶酸,与早产发生率显著降低相关。而对于以西方平均饮食为生的白人患者,未显示出这种效果。这表明叶酸缺乏可能导致饮食中叶酸摄入量低的人群出现“妊娠损耗”,这也是这些人群孕期补充叶酸的又一依据。