In Sweden, where criminal, health and social care records are linked,, researchers have found people convicted of crimes are much more likely to have ADHD than the rest of the population. Estimates suggest 7-40% of people in the criminal justice system may have it or other similar disorders, though many won’t have a formal diagnosis. A study in the New England Journal of Medicine found when criminals with ADHD took their medication, reoffending rates fell; they were 32-41% less likely to be convicted of a crime when they were taking the medication than when they were off it. “Taking ADHD seriously could have a significant impact on our whole society,” says Kustom.

Do I have ADHD?

The QbCheck includes a checklist to ensure quiet test conditions, a self-rating symptom check, an explanatory video then the 20-minute test itself. It’s like the card game “snap” with a built-in time lag. One of four symbols (red and blue circle and square) flash up on the screen one at a time, every 2 seconds. If the symbol on the screen is the same as the one immediately before, I click on the mouse. If it’s different, I don’t. Sounds easy? It really isn’t. I start off OK but it’s increasingly hard to stay focused on the boring and repetitive task. Random thoughts intrude; I want to change position, I’m hungry, I’m anxious I’ll fail. Bugger, was that a red or a blue circle? I’m aware of pulling myself back to the task, tell myself not to panic. In the end, I do surprisingly well – no mistakes, very consistent, not much fidgeting. I can’t help wondering if being completely absorbed in a boring task is a “good thing” but I can see it’s useful in the world we live in. My family’s skeptical as I’m notoriously restless and easily bored. But hopefully, my patients will be pleased that I can focus if I need to.