I have the inattentive version but it's simply not bad enough to take meds.
What I don't like about this study is that they only take meds into consideration, but there are other treatment options. For example cognitive behaviour therapy. Also, they included studies that included self-diagnosed ADHD. Self diagnoses are on the rise and very often wrong (I.e. trauma response might present with adhd like symptoms). Aside from some other flaws I think the significance of this study is limited...
You be you and do what works for you. But cognitive behavioral therapy does not work by itself for ADHD. Stimulants are the gold standard treatment.