3 ms·Lead does have horrible effects but I have to wonder if poverty might be a confounding variable.by mythrwy 5y agoLead does have horrible effects but I have to wonder if poverty might be a confounding variable.jeffbee 5y agoI have to wonder if not reading the PDF was a confounding variable in your reply.mythrwy 5y agoOh so you neglected to post a very important "Study controlled for XX" in your summary? Given your misuse of the term confounding variable it makes sense.