…found that 27.5 per cent of people who visited an emergency room for cannabis use developed an anxiety disorder for the first time within three years.
I mean, this study seems flawed in that they are only looking at people visiting emergency rooms for cannabis. Not very many people do that in the first place, and the people that do likely are the ones to show symptoms of anxiety and paranoia. On top of that, it doesn’t look at usage, nor the type of cannabis consumed.