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. 2024 Jan 3;14(1):e077908. doi: 10.1136/bmjopen-2023-077908

Table 4.

Lifetime cannabis hyperemesis syndrome experience by people who consumed cannabis in the past 12 months, in 2019, 2020 and 2021

2019
n=4943
2020
n=4952
2021
n=5674
Cannabinoid hyperemesis syndrome* 5.8% (285) 4.6% (230) 5.8% (331)

*44 excluded in 2019, 28 excluded in 2020 and 38 excluded in 2021 due to ‘refused’.