What did Statistics Canada find about ADHD and mental health in Canada?

Statistics Canada reported a link, not a cause

Statistics Canada Table 13-10-0930-01, Mental health indicators by population group, published by Statistics Canada in 2024 and drawn from the 2022 Mental Health and Access to Care Survey (MHACS), reports that Canadians aged 15 and older who said they had a current diagnosed attention deficit disorder also had worse broader mental health indicators than people who did not report that diagnosis. The source is descriptive population data. It shows associations in survey responses.

What it found, in plain language, is that ADHD sat alongside lower self-rated mental health and higher rates of some other current diagnosed mental health conditions in the same population table. What it does not say is that ADHD caused those other problems, that every person with ADHD will have them, or that these numbers can diagnose an individual adult or teen.

The evidence strength here is observational survey evidence. That is useful for understanding patterns in Canada, but it is weaker than evidence that can test cause and effect. If low mood, anxiety, substance use, or thoughts of self-harm are part of the picture, get urgent help now by calling or texting 9-8-8 in Canada, or call 911 if there is immediate danger.

The main pattern was poorer mental health overall

The broad message in the table is consistent: people with a reported current diagnosed attention deficit disorder had less favourable mental health indicators than those without it. Statistics Canada includes ADHD within a wider mental health indicator set, alongside self-rated mental health, perceived care needs, and some diagnosed conditions from the same survey program.

That matters because it frames ADHD as more than an attention issue. In this Statistics Canada dataset, ADHD appeared alongside wider mental health burden. For a reader, the practical takeaway is simple: if ADHD is being considered, it is reasonable to look at the full picture, not just concentration. That includes mood, anxiety, sleep, stress, substance use, and day-to-day functioning.

The table is for the Canadian population and is useful for awareness. It is not a clinical guideline and it does not recommend a specific treatment. A clinician still has to sort out whether symptoms fit ADHD, another condition, both, or neither. If you are wondering how structured adult assessment tools fit into that process, see What did the studies find about DIVA-5 for adult ADHD assessment?.

Here are the key findings to take from it

This is the safest way to read the source. It supports careful screening for overlapping concerns, but it does not support sweeping claims such as “ADHD causes depression” or “everyone with ADHD has anxiety.” Statistics Canada’s own mental health products also distinguish between perceived mental health, diagnosed conditions, and survey-based diagnostic criteria, which is an important limit on interpretation.

The source does not answer every question

The Statistics Canada table does not tell readers which problem came first. It also does not explain why the association exists. Shared symptoms, life stress, delayed recognition, sleep problems, school or work strain, and overlapping conditions could all matter, but this table cannot separate those explanations.

It also does not tell you what treatment is right. The table does not compare specific treatment approaches. For treatment evidence, use treatment-specific sources instead. If you want that next step, see What did the studies find about non-medication treatment for adult ADHD?.

Another limit is wording. The table refers to a current diagnosed attention deficit disorder. That relies on survey reporting and on whether a respondent had already been diagnosed. It does not capture every person who has ADHD traits but has never been assessed, and it does not prove that every diagnosis was made using the same clinical method.

Use this as a prompt to ask wider questions

The practical use of this Statistics Canada finding is to widen the conversation. If ADHD might be part of the story, it is sensible to also ask about mood, anxiety, substance use, sleep, stress, and safety. That is true for adults and for parents helping a teen prepare for an assessment.

• Write down the mental health concerns that are happening now, not just attention problems.
• Note whether symptoms show up at work, school, home, or in relationships.
• Bring a list of past diagnoses, counselling, hospital visits, or treatment types, if any.
• Bring a list of current treatments and discuss them with your usual prescriber or the assessing clinician if questions come up before assessment.
• If you are looking for an assessment path, use a service that evaluates whether your presentation is consistent with ADHD and can also consider other explanations. ADHD testing and diagnosis explains that process more generally.

If depression, panic, substance use, or thoughts of self-harm are making it hard to stay safe, call or text 9-8-8 in Canada, or call 911 if there is immediate danger. In Ontario, ConnexOntario also provides free, confidential, 24/7 navigation to mental health and addiction services.