# Understanding Your Child's Diagnosis — ADHD: Types, Symptoms & Diagnosis

- To be diagnosed with ADHD a child <17yo must exhibit 6 or more symptoms. [CDC](https://www.cdc.gov/adhd/diagnosis/index.html) — *[Jeremy Didier, Mar 2025](/sessions/20250309_Jeremy_Didier_ADHD_2/notes.md)*

- Since DSM-5 in 2013, ADD is no longer a diagnosis. Types of ADHD: — *[Jeremy Didier, Mar 2025](/sessions/20250309_Jeremy_Didier_ADHD_2/notes.md)*
    - ADHD Inattentive (formerly ADD)
    - ADHD Hyperactive
    - ADHD Combined
    - [Visual comparison](https://neurodivergentinsights.com/adhd-vs-adhd/)

- Females with ADHD are more frequently misdiagnosed with depression. Male:female prevalence ratio ranges from 1:3 to 1:9. [STUDY](https://pmc.ncbi.nlm.nih.gov/articles/PMC4443828/) — *[Jeremy Didier, Mar 2025](/sessions/20250309_Jeremy_Didier_ADHD_2/notes.md)*

- "Children with ADHD receive a full 20,000 more negative messages by age 10, on average" — [opinion article](https://cdn.mdedge.com/files/s3fs-public/issues/articles/70231_main_7.pdf) — *[Jeremy Didier, Mar 2025](/sessions/20250309_Jeremy_Didier_ADHD_2/notes.md)*

- Link between MTHFR gene and ADHD: [Meta-Analysis](https://pubmed.ncbi.nlm.nih.gov/35834596/) | [Article](https://www.additudemag.com/mthfr-adhd-genetics-puzzle/) — *[Jeremy Didier, Mar 2025](/sessions/20250309_Jeremy_Didier_ADHD_2/notes.md)*

- Children with ADHD are at a [3-5 year developmental delay](https://www.additudemag.com/executive-function-adhd-kids-lagging-skills/) — *[Jeremy Didier, Mar 2025](/sessions/20250309_Jeremy_Didier_ADHD_2/notes.md)*

- CDC autism rate: 1:150 in 2000 to [1:36 in 2020](https://www.cdc.gov/ncbddd/autism/data.html) — *[Nichole Sagar, Nov 2023](/sessions/20231119_Nichole_Sagar_ABA/notes.md)*

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