If a mom is exposed to certain chemicals during pregnancy, her son might show slightly more ADHD-like behaviors by age 2 to 4, but the link isn’t strong enough to be sure — and it doesn’t seem to affect girls the same way.

52

Pro

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Against

Evidence from Studies

Supporting (1)

52

Community contributions welcome

52

Maternal concentrations of phthalates and Attention-Deficit Hyperactivity Disorder (ADHD-) related symptoms in children aged 2 to 4 years from Odense child cohort.

Cohort Study

Human

2023 Oct

The study found that boys whose moms had higher levels of certain chemicals during pregnancy showed slightly more ADHD symptoms, but the link wasn’t strong enough to be sure it wasn’t due to chance—just like the claim says.

Contradicting (0)

0

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Maternal concentrations of phthalates and Attention-Deficit Hyperactivity Disorder (ADHD-) related symptoms in children aged 2 to 4 years from Odense child cohort.

Score: 52

DOI: 10.1016/j.envint.2023.108244

Similar Assertions

If pregnant moms have more of a certain chemical called MCPP in their urine, their kids might have fewer ADHD-like behaviors by ages 2 to 4 — especially if the child is a girl.

52

0

86%

Boys and girls react differently to mom's exposure to certain chemicals during pregnancy when it comes to early signs of ADHD. Girls seem to have fewer symptoms linked to some lighter chemicals, while boys show a slight increase in symptoms with heavier ones, though it's not strong.

52

0

85%