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Ontario study finds cannabis use was not higher among pregnant women after legalization

May 6, 2022 | Media Partners, The GrowthOp

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About 10 per cent of patients screened positive for cannabis

Article content

Pregnant patients in a tertiary care centre at the Kingston General Hospital did not show any higher cannabis use post-legalization.

Article content

Although many medical groups advise against using weed while pregnant or breastfeeding, there have been numerous studies finding cannabis use may up risks and others indicating no higher risk for certain conditions, such as impaired cognition.

Another Canadian study published last year in the Canadian Medical Association Journal identified three categories of reasons that weed is used during pregnancy and lactation: sensation-seeking for fun and enjoyment; symptom management of chronic conditions and conditions related to pregnancy; and coping with the unpleasant experiences of life.

In the Ontario study, researchers compared levels of cannabis and other substance use before and after cannabis legalization in obstetric patients.

Urine samples were collected from patients admitted for labour and delivery in September/October 2018 and September/October 2019. In all, about 9.5 to 10 per cent of patients screened positive for cannabis.

“Health care providers should discuss cannabis with patients who are pregnant or planning a pregnancy,” study authors write.

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