CHICAGO — Pot use in being pregnant has doubled amongst U.S. women and is commonest through the first trimester, authorities analysis exhibits.
Overall, 7 % of pregnant women, or 1 in 14, stated they used marijuana in the previous month. That’s from a nationally consultant well being survey in 2016-17 and compares with a bit of over three % in 2002-03.
Some research have linked marijuana use throughout being pregnant with elevated probabilities of untimely delivery and low birthweight. Animal research have linked excessive doses early in being pregnant with fetal mind abnormalities, however whether or not typical use in people poses comparable dangers is unknown, stated Dr. Nora Volkow, director of the National Institute on Drug Abuse.
“Because we don’t know exactly how harmful it is, it’s better to err on the side of caution,” stated Volkow, one of many authors of the federal government research. Marijuana use throughout being pregnant “is not worth the risk,” she stated Tuesday.
The research was introduced at a medical assembly Tuesday and revealed on-line in the Journal of the American Medical Association.
First trimester use jumped from virtually 6 % to 12 %. Many women might have used pot earlier than they discovered they have been pregnant, or used it to ease morning illness, though few women stated a physician had beneficial it, Volkow stated.
Among women who weren’t pregnant, the speed of marijuana use elevated from virtually 7 % to just about 12 %, or 1 in eight.
The outcomes are based mostly on well being surveys involving almost half one million U.S. women who have been questioned throughout a interval when rising numbers of states legalized marijuana for medical or leisure use. It’s authorized in 10 states for each makes use of however stays unlawful federally.
A separate research on marijuana use amongst pregnant Canadian women, revealed in the identical journal, provides to proof suggesting that pot use in being pregnant might result in untimely start. A journal editorial notes that like comparable earlier research, the Canadian analysis can’t rule out whether or not different elements which will have contributed.
The editorial warned towards counting on imperfect knowledge to make judgments about potential harms from marijuana use and stated extra rigorous analysis is required.