Diagnoses of cohort participants
| Diagnosis | Numbers with this diagnosis (n) | |
| Sole diagnosis of ADHD | 61 | |
| Additional | Autism spectrum condition | 54 |
| Anxiety | 14 | |
| A learning difficulty | 14 | |
| Asthma | 13 | |
| Dyspraxia | 12 | |
| Dyslexia | 11 | |
| A sensory processing disorder | 11 | |
| Oppositional defiant disorder | 8 | |
| Tourette’s syndrome | 7 |
ADHD, attention-deficit/hyperactivity disorder.