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Reproduced from Shi, et. al, 2021, "The associations between prenatal cannabis use disorder and neonatal outcomes"; Chart: Axios Visuals

Marijuana products often don't provide adequate warnings about potential risks to pregnant women, according to a new study from the National Institute on Drug Abuse.

The big picture: Preterm birth, low birth weight and mortality are all more likely in babies born to mothers who have been diagnosed with cannabis use disorders.

By the numbers: Roughly 7 out of every 1,000 babies born in California in 2012, the most recent year of data in the study, was born to a mother diagnosed with prenatal cannabis use disorder.

  • Infants born to women with a cannabis use disorder were 35% more likely to die within a year of birth.

How it works: CUD is different from casual use. The diagnosis requires continued use "despite impairments in physical, psychological and social functioning."

Where it stands: Recreational marijuana is legal in 17 states, and medical marijuana is legal in over 30, often as a treatment for nausea, vomiting and pain — which pregnancy can cause.

  • However, researchers are concerned that the adverse health effects for babies may outweigh the therapeutic effects for mothers.
  • Only California, Michigan and Colorado require warning labels that mention risks for pregnant women on cannabis products, according to the study.

Go deeper

Apr 22, 2021 - Politics & Policy

Virginia governor signs bill legalizing marijuana possession starting July 1

Virginia Gov. Ralph Northam. Photo: Zach Gibson

Virginia Gov. Ralph Northam on Wednesday signed a bill that legalizes the possession and growth of small amounts of recreational marijuana starting this summer.

Why it matters: Virginia is the first Southern state to legalize recreational marijuana, and the 16th state in the country to do so.

Pelosi's Republican playbook

Illustration: Aïda Amer/Axios

As Republicans fight among themselves, House Speaker Nancy Pelosi (D-Calif.) is showing the myriad ways she deals with the GOP herself.

Between the lines: We've seen Pelosi cut opponents off at the knees, like she did with President Trump, or pretend to forget their names, as she did to Sen. Ron Johnson (R-Wis.). Now she's feeding oppo research against her House counterpart, Minority Leader Kevin McCarthy (R-Calif.), so others can use the same harsh rhetoric to frame the Republicans as the party of dysfunction.

Exclusive: Houston mayor to lead Black mayors group

Houston Mayor Sylvester Turner speaks during a private funeral for George Floyd. Photo: Godofredo A. Vásquez/Pool/Getty Images

The mayor of the city where George Floyd was raised is taking over a group that represents 500 Black mayors in the U.S. amid national pressure to revamp police departments.

Why it matters: Houston Mayor Sylvester Turner will become the new president of the African American Mayors Association as municipalities across the country examine police reforms and deal with the economic fallout from the pandemic.