ADHD tied to 71% higher death rate across 15.9 million people, meta-analysis finds

People with attention-deficit/hyperactivity disorder die at higher rates than those without it, and the elevation is largest for deaths from suicide and injury, according to a systematic review and meta-analysis published in JAMA Network Open on 19 October 2026 [s1]. The analysis also found that, among people with ADHD, those taking ADHD medication had lower all-cause mortality than those who did not [s1].

What was pooled

The authors searched six databases — PubMed, Web of Science, PsycINFO, EMBASE, MEDLINE and CINAHL — from each database's inception to 8 July 2025, for quantitative studies reporting all-cause or cause-specific mortality in people with ADHD [s1]. ADHD was allowed to be defined by diagnostic criteria, self-identification, trait measures or polygenic risk scores [s1]. Nineteen studies met the criteria, together covering 15,920,970 participants, of whom 36.1% were female [s1]. Pooled hazard ratios were calculated using random-effects models [s1].

Pooling across such varied definitions and populations is both the strength and the weakness here. It lets the authors assemble nearly 16 million people spanning all age groups and several countries, but it also means the studies differ substantially in how ADHD was ascertained and how deaths were counted — and the authors report substantial heterogeneity across the included studies [s1].

The mortality figures

ADHD was associated with increased all-cause mortality, with a pooled hazard ratio of 1.71 (95% CI 1.31-2.24; P < .001) [s1]. In plain terms, the death rate among people with ADHD was about 1.7 times that of comparison groups across the pooled studies.

The elevation was not uniform across causes. The hazard ratio was highest for suicide, at 1.89 (95% CI 1.21-2.95; P = .005), and was 1.55 for unintentional or intentional injury (95% CI 1.22-2.00; P < .001) [s1]. Deaths from natural causes were also raised, though less steeply, at a hazard ratio of 1.27 (95% CI 1.16-1.38; P < .001) [s1]. That ordering — external causes such as suicide and injury elevated more than natural-cause mortality — is consistent with a disorder whose risks run heavily through impulsivity, accidents and self-harm rather than through a single physical disease pathway.

The medication signal

Among people with ADHD, medication use was associated with reduced all-cause mortality, with a hazard ratio of 0.75 (95% CI 0.64-0.87; P < .001) [s1]. The authors frame this as underscoring the importance of timely diagnosis and treatment [s1].

That association needs careful reading. This is observational evidence pooled from existing studies, not a randomised comparison, so it cannot establish that medication itself prevents deaths; people who are prescribed and stay on ADHD medication may differ systematically from those who are not, in ways — adherence, engagement with care, severity, social support — that independently affect mortality risk. The direction of the finding is reassuring and consistent with other recent work, but confounding by indication and by healthy-adherer effects is difficult to rule out in a synthesis of this design. The estimate is built around medication use in general rather than any specific drug, dose or duration, so it speaks to treatment status broadly rather than telling clinicians which regimen carries the association [s1].

How to read it

The headline numbers are relative risks, not absolute ones: a hazard ratio of 1.71 describes how much more likely death is in the ADHD group than the comparison group, not the share of people with ADHD who die, which remains low in absolute terms for most age groups. The wide spread of hazard ratios across causes, and the substantial heterogeneity the authors flag, mean the pooled estimates are best read as the direction and rough scale of an association rather than a precise figure [s1].

The authors themselves conclude that ADHD was associated with increased mortality across multiple causes, and that ADHD medication was associated with decreased all-cause mortality risk, while calling for standardised methods and better control of confounding to characterise the risk more precisely [s1]. The practical takeaway is less about any single number than about where the risk concentrates: the excess deaths linked to ADHD in this synthesis fall disproportionately on suicide and injury — preventable, external causes — which is where clinical attention and public-health strategy have the most room to act [s1].

This article is informational and is not medical advice.