Higher urinary levels of several phthalates at 3 years of age appear to be strongly associated with decreased cognitive abilities

In March 2019 researchers from the USA and Canada published the results of their study to assess the impact of phthalates on children’s cognitive abilities. A total of 253 mother-child pairs were involved in the study. Urinary levels of 11 types of phthalates were assessed twice during pregnancy and 6 times during visits when children were aged between 1-8 years. In addition, the child’s cognitive abilities were assessed at ages 5 and 8 years. Results showed that the association between some phthalates and intelligence varied by visit. It was seen that higher urinary levels of di(2-ethylhexyl) phthalates, mono(3-carboxypropyl) phthalate, and monoethyl phthalate at age 3 and monobenzyl phthalate at 16 weeks gestation and child ages 3, 5, and 8 years were associated with a decrease in the child’s cognitive abilities.

Li N et al. Identifying periods of susceptibility to the impact of phthalates on children’s cognitive abilities. Environ Res. 2019 Mar 5;172:604-614

Leave a Reply