Researchers found that 3,000 out of half a million women in the Canadian study used cannabis during pregnancyChildren whose mothers take cannabis during pregnancy are almost twice as likely to develop autism, according to the biggest study of its kind. Research involving half a million women found that those who used cannabis while pregnant had a higher chance of giving birth to an autistic child. The incidence of autism was 4 per 1,000 person years among children exposed to cannabis in pregnancy, compared with 2.42 among unexposed children, according to the paper published in Nature Medicine. Of the half a million women in the study, about 3,000 (0.6 percent) reported using cannabis during pregnancy. The team had previously found that cannabis use by expectant mothers increased the

Source: The Times August 10, 2020 16:11 UTC