1 | Mr Wang matched families from the two surveys according to their Engel' s coefficients. | |
2 | A parent's report about a child's behavior is certainly subjective, " Engel said. | |
3 | But there' s still plenty of play in Engel' s law that he cannot explain or control for. | |
4 | "More phthalates equaled more behavioral problems, " Stephanie Engel, a Mount Sinai associate professor of preventive medicine and lead author of the study, said in an interview Thursday. | |
5 | Some effects were stronger in boys than girls, but the associations to the chemicals were still considered significant in the girls, Engel said. |