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Research Letter
June 18, 2019

Self-reported Medical and Nonmedical Cannabis Use Among Pregnant Women in the United States

Author Affiliations
  • 1National Institute on Drug Abuse, National Institutes of Health, Bethesda, Maryland
  • 2Substance Abuse and Mental Health Services Administration, Rockville, Maryland
JAMA. 2019;322(2):167-169. doi:10.1001/jama.2019.7982

Cannabis use increased among pregnant women in the United States from 2002 to 2014.1 However, changes in cannabis use and frequency by trimester over time and national prevalence of medical cannabis use during pregnancy are unknown. Data from the National Survey on Drug Use and Health (NSDUH) were examined to address these knowledge gaps.

Data were from women aged 12 to 44 years who participated in the 2002-2017 NSDUH, a representative survey of the US civilian, noninstitutionalized population.2 Collection of NSDUH data was approved by the institutional review board at RTI International.2 Data were collected by interviewers during personal visits. Oral informed consent was received from respondents. The annual mean weighted response rate of the 2002-2017 NSDUH was 63.6%. Although methods to assess nonresponse bias vary, NSDUH trends have been comparable with trends from other population surveys.

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