Bartlett Katelyn, Kaarid Kaija, Gervais Nicole, Vu Nancy, Sharma Sapna, Patel Tejal, Shea Alison K
Department of Obstetrics and Gynecology, McMaster University, Hamilton, ON.
Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON.
J Obstet Gynaecol Can. 2020 Nov;42(11):1346-1350. doi: 10.1016/j.jogc.2020.04.015. Epub 2020 May 15.
Rates of cannabis use during pregnancy and while breastfeeding are increasing in Canada. Some observational studies have found associations between cannabis use in pregnancy and low birthweight, preterm labour, and admission to the intensive care unit. This study aimed to evaluate women's perceptions about transmission of cannabis to the fetus, and whether receiving information from a health care provider influenced their decision to stop using cannabis during pregnancy.
Pregnant women presenting to obstetrical, midwifery, and family practice clinics in the greater Hamilton, Ontario area were asked to complete an anonymous survey. Chi-square tests were used to investigate whether patient knowledge was influenced by health care providers or by self-directed learning and if this information influenced their decision to discontinue cannabis use.
Of the 478 women surveyed, the vast majority perceived that cannabis is transmitted to the fetus during pregnancy and to the infant while breastfeeding (94.3% and 91.2%, respectively). The majority of women (99%) indicated that the advent of cannabis legalization did not influence their choice to use cannabis in pregnancy. Women who continued to use cannabis during pregnancy were more likely to report receiving information on cannabis from a health care provider (52%) than those who chose to discontinue use in pregnancy (35%) (P = 0.035).
In our study, the proportion of pregnant women who understood that cannabis could be transmitted to the fetus in utero and to the infant via breastmilk was high. Despite this, 4.2% of women reported that they continued to use cannabis in pregnancy. More work is needed to understand why some women continue to use cannabis in pregnancy despite being informed of its risks.
在加拿大，孕期及哺乳期使用大麻的比例正在上升。一些观察性研究发现，孕期使用大麻与低出生体重、早产以及入住重症监护病房之间存在关联。本研究旨在评估女性对大麻传递给胎儿的看法，以及从医疗保健提供者处获取信息是否会影响她们在孕期停止使用大麻的决定。
要求安大略省大哈密尔顿地区产科、助产和家庭医疗诊所的孕妇完成一项匿名调查。采用卡方检验来调查患者知识是否受到医疗保健提供者或自主学习的影响，以及这些信息是否影响她们停止使用大麻的决定。
在478名接受调查的女性中，绝大多数人认为大麻在孕期会传递给胎儿，在哺乳期会传递给婴儿（分别为94.3%和91.2%）。大多数女性（99%）表示大麻合法化的出现并未影响她们在孕期使用大麻的选择。在孕期继续使用大麻的女性比选择在孕期停止使用大麻的女性更有可能报告从医疗保健提供者处获得了关于大麻的信息（52%对35%）（P = 0.035）。
在我们的研究中，理解大麻可在子宫内传递给胎儿并通过母乳传递给婴儿的孕妇比例很高。尽管如此，4.2%的女性报告称她们在孕期继续使用大麻。需要开展更多工作来了解为什么一些女性尽管被告知大麻的风险，仍在孕期继续使用大麻。
