Substance Use Disorder Life Expectancy and Health Outcomes

Key Takeaways

• Individuals with alcohol use disorder have a reduced life expectancy of 24-28 years in the most severe cases, according to a 2018 study published in The Lancet (GBD 2016 Alcohol Collaborators, 2018).
• Opioid use disorder is associated with an all-cause mortality rate 6-20 times higher than the age-matched general population, per a meta-analysis in Drug and Alcohol Dependence (Degenhardt et al., 2011).
• Drug overdose deaths contributed to a decline in US life expectancy from 2015 to 2017, the first sustained decline since 1918 (CDC NCHS, 2019).
• Approximately 48.7 million Americans aged 12+ had a substance use disorder in 2023, with significant state-level variation in prevalence (SAMHSA NSDUH, 2024).
• Sustained recovery is associated with significant reversal of many health consequences, including improved cardiovascular health, liver function, and cognitive functioning (NIAAA, 2023).

Statistics updated quarterly. Last reviewed March 28, 2026.

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Substance use disorders impose a substantial burden on health and longevity. Beyond the immediate risk of overdose, chronic substance use increases the risk of cardiovascular disease, liver disease, cancer, infectious disease, and mental health deterioration. This page presents the evidence on how different substances affect life expectancy, the broader health consequences of SUDs, current prevalence data, and the degree to which health outcomes can improve with recovery.

How Substance Use Disorders Affect Life Expectancy

Reduced Life Expectancy by Substance

The impact of substance use disorders on life expectancy varies by substance, severity of use, and access to treatment:

Alcohol use disorder: A 2018 study published in The Lancet by the GBD 2016 Alcohol Collaborators found that heavy alcohol consumption is associated with a significantly reduced life expectancy. Among individuals with severe alcohol use disorder (defined as consuming more than 100g of alcohol per week), life expectancy was reduced by an estimated 1-2 years for moderate consumption and up to 4-5 years for heavy consumption. Among those with the most severe forms of alcohol dependence requiring hospitalization, Scandinavian registry studies have documented life expectancy reductions of 24-28 years, with a mean age of death of approximately 47-53 years (Westman et al., European Addiction Research, 2015).

Opioid use disorder: A meta-analysis by Degenhardt et al. published in Drug and Alcohol Dependence (2011) found that individuals with opioid dependence have an all-cause mortality rate 6-20 times higher than age-matched peers in the general population. The crude mortality rate (CMR) for untreated opioid dependence is approximately 2-4% per year, according to the same analysis. Among individuals who inject opioids, the mortality rate is higher still, driven by overdose, infectious disease (HIV, hepatitis C), and injection-related complications.

Methamphetamine use: A 2019 study published in JAMA Psychiatry found that methamphetamine users had a standardized mortality ratio (SMR) approximately 4.7 times higher than the general population, with a mean age of death of approximately 46 years among fatal cases (Darke et al., 2019). Cardiovascular disease, particularly cardiomyopathy and stroke, is a major contributor to methamphetamine-related mortality.

Tobacco/nicotine: While not always included in substance use disorder discussions, tobacco remains the leading preventable cause of death. The CDC estimates that cigarette smoking reduces life expectancy by approximately 10 years on average (CDC, 2020). Approximately 480,000 Americans die annually from tobacco-related causes, more than all other substance-related deaths combined (CDC, 2023).

Mechanisms of Early Death

Substance use disorders cause premature death through multiple pathways:

• Acute overdose: The most immediate cause, particularly for opioids. The CDC reported approximately 107,941 overdose deaths in the 12-month period ending June 2023 (NCHS, 2023).
• Chronic organ damage: Alcohol-related liver cirrhosis, alcohol-related cardiomyopathy, stimulant-related cardiovascular disease, and smoking-related lung cancer and COPD.
• Infectious disease: Injection drug use is a major risk factor for HIV and hepatitis C virus (HCV). According to the CDC, injection drug use accounted for approximately 7% of new HIV diagnoses in 2021 and is the primary driver of HCV transmission in the US (CDC, 2023).
• Injury and violence: Substance use increases the risk of motor vehicle crashes, falls, drowning, and interpersonal violence. According to NHTSA, approximately 32% of traffic fatalities involve alcohol-impaired drivers (NHTSA, 2023).
• Suicide: Substance use disorders are strongly associated with suicidal behavior. SAMHSA data indicates that individuals with SUD are approximately 6 times more likely to attempt suicide than those without SUD (SAMHSA, 2023).
• Accelerated aging: Chronic substance use accelerates cellular aging processes. A 2020 study in Biological Psychiatry found that alcohol use disorder was associated with accelerated epigenetic aging equivalent to approximately 2-4 additional years of biological age (Luo et al., 2020).

Health Outcomes Beyond Mortality

Chronic Disease Risk

Substance use disorders substantially increase the risk of chronic diseases:

Liver disease: Alcohol is the leading cause of liver cirrhosis in the US. The CDC reported that chronic liver disease and cirrhosis accounted for approximately 56,585 deaths in 2022, with alcohol as the primary cause in the majority of cases (CDC WONDER, 2023). NJ reported approximately 1,800 deaths from chronic liver disease in 2022 (NJ Department of Health, 2023).

Cardiovascular disease: Stimulant use (cocaine, methamphetamine) increases the risk of heart attack, stroke, and cardiomyopathy. Heavy alcohol use is associated with hypertension, atrial fibrillation, and alcoholic cardiomyopathy. A 2019 study in the Journal of the American Heart Association found that cocaine users had a 3.7 times higher risk of sudden cardiac death compared to non-users (Awtry and Philippides, Circulation, 2010; updated data in JAHA, 2019).

Cancer: Alcohol is classified as a Group 1 carcinogen by the International Agency for Research on Cancer (IARC). The IARC has established causal links between alcohol consumption and cancers of the mouth, throat, esophagus, liver, colon, rectum, and breast (IARC, 2023). NIAAA estimates that approximately 3.5% of cancer deaths in the US are attributable to alcohol consumption (NIAAA, 2024).

Infectious disease: Beyond HIV and HCV, substance use increases vulnerability to bacterial endocarditis (from injection drug use), tuberculosis, sexually transmitted infections, and wound infections. The emergence of xylazine in the drug supply has added a new category of severe wound complications among people who inject drugs (CDC, 2023).

Mental Health Impacts

Substance use disorders and mental health conditions are bidirectionally related:

• Approximately 37% of individuals with SUD have a co-occurring mental health condition, according to SAMHSA (2024).
• Chronic alcohol and drug use can cause or worsen depression, anxiety, psychotic symptoms, and cognitive impairment.
• A 2021 meta-analysis in Psychological Medicine found that individuals with alcohol use disorder had a 3.7-fold increased risk of major depression and a 2.1-fold increased risk of anxiety disorders compared to the general population (Lai et al., 2021).
• Chronic methamphetamine use is associated with significant cognitive impairment, including deficits in memory, attention, and executive function that may persist for months or years after cessation (NIDA, 2024).
• Long-term opioid use is associated with hormonal disruption (opioid-induced endocrinopathy), depression, and cognitive slowing (Brennan et al., Pain, 2013).

Current SUD Prevalence Statistics

National Prevalence Data

SAMHSA’s 2023 NSDUH (released 2024) provides the most current national prevalence estimates:

• 48.7 million Americans aged 12+ had a past-year substance use disorder.
• 29.5 million had an alcohol use disorder.
• 27.2 million had a drug use disorder.
• 8.0 million had both alcohol and drug use disorders simultaneously.
• Only 24.1% of those with SUD received any treatment in the past year.

These numbers represent a significant public health burden, with substance use disorders affecting approximately 17.3% of the US population aged 12 and older (SAMHSA, 2024).

State-Level Variation

Substance use disorder prevalence varies by state, though the variation is less dramatic than for overdose death rates (which are more affected by drug supply composition). According to SAMHSA sub-state NSDUH estimates (2022-2023):

• States with the highest SUD prevalence tend to be in the West and Northeast.
• States with the lowest prevalence tend to be in the Southeast and Great Plains, though these same states may have higher rates of unmet treatment need.
• New Jersey reports an estimated SUD prevalence of approximately 7.5% among adults 18+, slightly below the national average of 7.7% (SAMHSA sub-state estimates, 2022-2023).

The relationship between SUD prevalence and overdose death rates is not linear. A state can have moderate SUD prevalence but high overdose death rates if its drug supply is heavily contaminated with fentanyl, or high prevalence but lower death rates if alcohol (which kills more slowly) is the predominant substance of concern.

How Recovery Improves Health Outcomes

Physical Health Recovery After Sobriety

A significant body of research demonstrates that many health consequences of substance use are partially or fully reversible with sustained recovery:

Liver recovery: The liver has remarkable regenerative capacity. According to NIAAA (2023), alcohol-related fatty liver disease is fully reversible with sustained abstinence. Alcohol-related fibrosis can stabilize or partially reverse. Even cirrhosis, while not fully reversible, shows improved function and survival with sustained abstinence.

Cardiovascular improvement: Blood pressure, heart rhythm, and cardiovascular risk markers improve within weeks to months of cessation of heavy alcohol or stimulant use. A 2020 study in Hypertension found that heavy drinkers who achieved sustained abstinence showed clinically significant reductions in blood pressure within 3-6 months (Piano et al., 2020).

Cognitive recovery: Cognitive deficits associated with alcohol and methamphetamine use show significant improvement with sustained abstinence, though some deficits may persist. A longitudinal study published in Neuropsychology Review found that most cognitive functions in alcohol use disorder patients returned to the normal range within one year of abstinence, with continued improvement over several years (Stavro et al., 2013).

Immune function: Immune system function improves with cessation of alcohol and drug use, reducing susceptibility to infections. For individuals with HIV and SUD, engagement in both HIV treatment (antiretroviral therapy) and substance use treatment produces the best health outcomes (NIDA, 2023).

The Earlier Treatment Begins, the Better

Research consistently demonstrates that earlier intervention leads to better long-term health outcomes:

• A 2019 study in Addiction found that individuals who entered treatment within one year of developing SUD had significantly better health outcomes at five-year follow-up than those who delayed treatment for more than five years (Blanco et al., 2019).
• For alcohol use disorder, liver damage accumulates over years to decades. Treatment before the onset of cirrhosis is associated with near-complete liver recovery (NIAAA, 2023).
• For opioid use disorder, earlier initiation of MAT reduces the cumulative risk of fatal overdose, HIV/HCV infection, and other injection-related complications (Wakeman et al., JAMA Network Open, 2022).
• NIDA notes that treatment for substance use disorder need not be voluntary to be effective; externally motivated treatment (through family, employer, or criminal justice pressure) produces outcomes comparable to self-motivated treatment entry (NIDA Principles of Drug Addiction Treatment, 2018).

The overall trajectory is clear: substance use disorders impose significant health consequences that accumulate over time, but recovery is possible and is associated with meaningful health improvement at any stage.

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This page is part of the Addiction Statistics, Research, and Recovery Data guide on NJ Addiction Centers.

Related resources:

• Drug Addiction Statistics by State, Race, and Gender
• Substance Use Disorder Research and Scholarly Resources
• Alcohol and Liver Damage
• How Addiction Affects the Brain