I'm trying to define impact of substituted cathinones on depression. To my surprise, majority of my patients who use substituted cathinones are also using many other substances, but I have no detailed data about patients' other drugs usage except for the names of substances. I have detailed data on how often they take the cathinones though, therefore I want to divide the substances into 2 or 3 groups based on these substances' impact on depression for analytical reasons. I don't want to miss any approach during analyzing.
The full list I asked them about contains alcohol, marihuana, amphetamine, meth, MDMA, cocaine, ketamine, LSD/DMT/psylocybine and 2C phenethylamines and "others".
I thought about dividing them into stimulants, depressants and psychedelics, which seems the most reasonable fragmentation to do. Any thoughts?
Thank you!