In a new study, researchers in London, Ontario found that women who used marijuana while pregnant were almost three times more likely to have an infant with low birth weight than women who did not use marijuana.
The study analyzed data from perinatal and neonatal databases at London Health Sciences Centre (LHSC) and is the first large-scale study in Canada to show this association between marijuana use among pregnant women and low birth weight infants.
It was conducted by researchers at Lawson Health Research Institute, Western University and Brescia University College.
Maternal amphetamine use, chronic hypertension and smoking were identified as other top risk factors for low birth weight. The study also examined predictors of preterm birth, which included previously diagnosed diabetes, maternal narcotic use and insulin-controlled gestational diabetes.
“Low birth weight and preterm birth are serious public health problems. Both…