A study to be published by the Annals of Emergency Medicine shows that accidental exposures to marijuana among children under the age of nine have increased in states that have laws allowing liberalized access to marijuana. The raw data for this study was derived from records of calls to poison centers from 2005 to 2011.
According to the journal article, the absolute risk remains low. The research shows that poison control calls were increased by 30% over earlier years in states that liberalized MJ use / access before 2005. In states where liberalization is more recent, the data showed an increase in calls of approximately 10%. By contrast, other states showed increases of only 2%.
Oregon and Colorado ranked highest--with increases of 6.8 and 6.6 respectively with California and Nevada not far behind. In states with easiest access to legalized marijuana, the data showed that children's caretakers were more likely to report ingestion of MJ by children to poison control centers.
The authors recommended that: