Pregnant women suffering from nausea and vomiting will more often use marijuana

New American research has shown that women with mild or severe nausea and vomiting during pregnancy were significantly more likely to use marijuana than women without these symptoms.

The large-scale study conducted by Kaiser Permanente researchers looked at 220,510 pregnant women who were members of Kaiser Permanente in Northern California.

The women were asked to report themselves on any drug through a questionnaire and to conduct a urine toxicology test in the first trimester, in which the researchers assessed possible nausea and vomiting using electronic medical records.

They found that pregnant women with severe nausea and vomiting during pregnancy were nearly four times more likely to have prenatal marijuana use than pregnant women without nausea and vomiting, and those with mild nausea and vomiting had more than twice the risk of prenatal marijuana use.

"This is the largest study to date of nausea and vomiting during pregnancy and prenatal marijuana use," said lead author of the study, Kelly Young-Wolff, Ph.D., MPH.

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