Figure 2

Prevalence of children and adolescents aged 3–17 years with two of selected developmental disabilities, by year: US, 2018–2021. ADHD & LD: co-occurring ADHD & LD; LD & ASD: co-occurring LD & ASD; LD & ID: co-occurring LD & ID; ADHD & ASD: co-occurring ADHD & ASD; ASD & ID: co-occurring ASD & ID; ADHD & ID: co-occurring ADHD & ID.