Hi everyone, I’m working on an article for Recursive Adaptation about the death and disease burden of addiction and I think some folks here might be pretty experienced and structured on these types of questions, so I thought I’d post a veryyy rough initial draft / notes for feedback. And if you’d be interested in working on this article with me please let me know, I'd love the help.
Recursive Adaption is the publication of CASPR — we are a new organization focused on scalable strategies for addiction, particularly development and deployment of new medications, including scaling GLP-1s for addiction and ensuring suzetrigine access (which is an opioid-replacing painkiller that will be available next year but insurance generally won’t cover, which is... a bad situation).
So, here’s what I have so far about these questions on addiction and leading causes of death.
US deaths from addiction
Drug overdoses, opioids and stimulants, now cause more than twice as many annual deaths in the United States as HIV/AIDS caused at its peak in 1995 (109,000 vs 45,000). Overdose deaths are just one part of the mortality burden— addiction kills even more people slowly.
US deaths from excess alcohol use are 178,000 per year and deaths from smoking are 480,000 per year. That’s a total of about 767,000 annual deaths from substance use disorders.
For context, COVID deaths peaked at 450,000 annually and are now ~90% lower than peak.
How does this compare to deaths from cancer and heart disease? Looking at top line numbers in the US, cancer deaths are about 609,000 and heart disease deaths are 695,000. Both of those are lower than the 767,000 from substance use and actually those numbers are inflated because a big portion of heart disease and cancer death is caused by substance use. If we subtract those deaths, the gap gets bigger.
Deaths from non-addiction related cancer
In the USA
According to the American Cancer Society, “In 2022, there will be an estimated 1.9 million new cancer cases diagnosed and 609,360 cancer deaths in the United States.”
As for alcohol, opioids, stimulants, this study, summarized here, looks at rates of substance-use related cardiovascular death but this doesn’t seem to be quite the same as attributing a cause. I haven’t found a number yet for heart disease deaths caused by substance use.
US addiction deaths vs heart disease and cancer
Where does this leave us?
US Deaths from Addiction: 767,000
US Deaths from Non-Addiction Related Cancer: 408,271
US Deaths from Non-Smoking Related Heart Disease: 486,500 (still need to subtract alcohol, opioid, and stimulant deaths here).
This comes right from the WHO DALY dashboard for the USA. But this does not include alcohol or cigarettes in ‘drug use’ and it also breaks up cancers and heart diseases into various subcategories. I’m pretty sure that addiction, if you include alcohol and cigarettes (and subtracting those from heart disease and cancer), would be at the top of DALYs in the US even after grouping together heart diseases and cancers. It would be great to have a method for this.
If you include smoking and drinking’s effects on dementia, liver disease, depression, anxiety, etc, the DALYs would keep rising and, I believe, far outstrip any other cause of disease.
I haven’t yet attempted to look at this systematically worldwide, but would love some suggestions on where or how to do so (or help from someone who wants to collaborate on this!).
Opioid and stimulant deaths are generally much lower outside of the US and the US seems to be in the highish range on drinking. But globally, ~22% of people smoke and only ~12% do in the US. Since deaths from addiction appear to be so much higher than deaths from non-substance cancer and heart disease in the US, then addiction might also be the highest cause of death globally.
If you considered modern processed foods addictive, and they seem to follow many of the same reward pathways and respond to some of the same medicines as addiction to substances (GLP-1s), then you would attribute a huge additional chunk of death and disease to addiction. This would be interesting to do the numbers on as well.
Next steps
I’d love comments with suggestions big and small, links, advice, etc. And would love collaborators even more, I can put this into a google doc for us.
For folks that are interested in tackling major public health crises, this may be the biggest of all! And what's so important about addiction as a public health challenge is that it's preventable. CASPR is a mostly volunteer driven project, with folks from EA forum and 80,000 jobs.
I genuinely believe that we have a chance to substantially speed up awareness and access to treatments that can prevent or cure addiction and, in doing so, save hundreds of thousands or millions of lives.
Hey there! For what it's worth, did you look at the Global Burden of Disease study? They define 'cause' and 'risk factor' separately. So they have direct drug overdoses in causes, but also calculate death & DALY burdens that are attributable to drug addiction, tobacco use, and high alcohol use (you can play around with the models here). Note that all estimates below have wide credible intervals in their models, but I've omitted them for readability. I also don't know how they perform their risk factor attribution, but since a lot of experts contribute to this I can't imagine it's worse than your analysis or missing something crucial.
In their data, tobacco contributes 195M DALYs/year (6.76% of the total DALY burden suffered by all humanity), high alcohol use contributes 72M or 2.51%, and drug use 28M or 0.96%.
In the U.S., these risk factors contribute 22M DALYs/year. Combined, this is more than all direct level-2 causes of death in the GBD (cardiovascular, in #1, has 18M DALYs/year). Equivalently, it would be the 5th-largest level-2 direct cause globally, behind cardiovascular, respiratory, neoplasms, and maternal disorders. But I'd warn against making these sorts of comparisons because they obviously depend on how you slice up your data (for the same reason, the chart you made from WHO data doesn't hold much water with me on its face).
I think the best next steps for you would be to create a strong case that addiction is neglected relative to top EA cause areas such as malaria, childhood vaccinations, maternal health, and so on. You could try to find good estimates on the amount of global or per-country funding going to each issue relative to their contribution to the global burden of disease. I am not sure how that analysis would play out, but I'd love to see it on the forum!
Executive summary: Addiction, including substance use disorders related to drugs, alcohol, and smoking, is likely the leading cause of death and disability in the United States, and potentially worldwide, surpassing heart disease and cancer.
Key points:
In the US, annual deaths from drug overdoses (109,000), alcohol use (178,000), and smoking (480,000) total approximately 767,000, exceeding deaths from heart disease (695,000) and cancer (609,000).
Adjusting for addiction-related deaths, non-addiction cancer deaths are estimated at 408,271 and non-smoking heart disease deaths at 486,500 in the US.
WHO data suggests addiction is the leading cause of DALYs (disability-adjusted life years) in the US, even without including alcohol and cigarettes.
Globally, the high prevalence of smoking (22%) and alcohol consumption may make addiction the leading cause of death and DALYs worldwide.
Considering processed foods as potentially addictive could further increase the death and disease burden attributed to addiction.
Addiction is a preventable public health crisis, and increasing awareness of and access to treatments could save hundreds of thousands or millions of lives.
This comment was auto-generated by the EA Forum Team. Feel free to point out issues with this summary by replying to the comment, and contact us if you have feedback.
Thanks for the post, these numbers are pretty big.
I also wonder whether negative effects linked to an overuse of screen might be pretty big as well (competition with sports, sleep and going outside, negative effects on mental health...)
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Hey there! For what it's worth, did you look at the Global Burden of Disease study? They define 'cause' and 'risk factor' separately. So they have direct drug overdoses in causes, but also calculate death & DALY burdens that are attributable to drug addiction, tobacco use, and high alcohol use (you can play around with the models here). Note that all estimates below have wide credible intervals in their models, but I've omitted them for readability. I also don't know how they perform their risk factor attribution, but since a lot of experts contribute to this I can't imagine it's worse than your analysis or missing something crucial.
In their data, tobacco contributes 195M DALYs/year (6.76% of the total DALY burden suffered by all humanity), high alcohol use contributes 72M or 2.51%, and drug use 28M or 0.96%.
In the U.S., these risk factors contribute 22M DALYs/year. Combined, this is more than all direct level-2 causes of death in the GBD (cardiovascular, in #1, has 18M DALYs/year). Equivalently, it would be the 5th-largest level-2 direct cause globally, behind cardiovascular, respiratory, neoplasms, and maternal disorders. But I'd warn against making these sorts of comparisons because they obviously depend on how you slice up your data (for the same reason, the chart you made from WHO data doesn't hold much water with me on its face).
I think the best next steps for you would be to create a strong case that addiction is neglected relative to top EA cause areas such as malaria, childhood vaccinations, maternal health, and so on. You could try to find good estimates on the amount of global or per-country funding going to each issue relative to their contribution to the global burden of disease. I am not sure how that analysis would play out, but I'd love to see it on the forum!
Thank you, this is extremely helpful! I will dive into this.