Dang H S, Jaiswal D D, Somasundaram S, Deshpande A, Dacosta H
Sci Total Environ. 1984 Apr 5;35(1):85-9. doi: 10.1016/0048-9697(84)90370-x.
Concentrations are reported for Cu, Mn, Mo and Zn in human milk samples obtained from mothers belonging to low and middle per capita family income groups. The trace element levels in milk of both groups are compared for samples obtained at two stages, viz. 3-5 days and 4-6 weeks post partum. Although the Mn level during the first stage appears to be lower in samples from the low income group, the difference is not statistically significantly (p less than or equal to 0.01). However, at 4-6 weeks post partum, Zn is significantly lower (p less than or equal to 0.01) in milk of mothers belonging to this group.
报告了从人均家庭收入处于低水平和中等水平的母亲那里获取的母乳样本中铜、锰、钼和锌的含量。对这两组母亲在产后两个阶段（即产后3 - 5天和4 - 6周）获取的母乳样本中的微量元素水平进行了比较。尽管在第一阶段，低收入组样本中的锰含量似乎较低，但差异无统计学意义（p≤0.01）。然而，在产后4 - 6周，该组母亲母乳中的锌含量显著较低（p≤0.01）。
