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News — The International Classification of Diseases (ICD) is a global standard for classifying diseases, deaths and health conditions and has been used for more than a century. It assigns diagnostic codes to categorize diseases and their causes, aiding in health data, statistics and clinical documentation. Now in its 11th revision, the ICD is crucial for epidemiology, health care and policy.

While the ICD assumes each disease is distinct, the idea that different diseases may share underlying causes has led to the emerging concept of “deaths of despair.” Deaths of despair include fatalities caused by suicide, drug overdose and alcohol-related diseases.

In a new study, researchers from ’s explored temporal trends in the occurrence of deaths of despair in the United States from 1999 to 2021 among those aged 25 to 74.

Researchers used the previously defined and widely accepted definition of deaths of despair as a constellation of 19 underlying causes which included: chronic hepatitis; liver fibrosis/cirrhosis; suicide/sequelae of suicide; poisoning (accidental or undetermined intent) or exposure to nonopioid analgesics, antipyretics, rheumatic, antiepileptic’s, sedative hypnotics, antiparkinson and psychotropic drugs; narcotics, psychodysleptics, drugs acting on the central nervous system; and alcohol.

The study, published in the peer reviewed journal, , reveals a disturbing rise in deaths of despair among individuals 25 to 74 years of age over the past two decades. From 1999 to 2021, the annual percent change in deaths of despair increased two-and-a-half-fold. Using this classification, by 2021, deaths of despair would have become the fifth leading cause of death in the U.S. The 176,386 deaths would have followed heart disease (695,547 deaths), malignant neoplasms (605,213 deaths), COVID-19 (416,893 deaths), and accidents (224,835 deaths).

“These data underscore the public health challenges deaths of despair present and to advocate for comprehensive strategies that address both their clinical and socio-economic risk factors,” said , Ph.D., senior author and professor and chair, , Schmidt College of Medicine. “Policymakers should consider integrating mental health and substance use services into primary care to reduce stigma and improve access.”  

 For the study, researchers used the U.S. Centers for Disease Control and Prevention’s (CDC) publicly available Wide-Ranging Online Data for Epidemiologic Research (WONDER) and Multiple Cause of Death files.

“These data are descriptive and useful to generate hypotheses,” said , M.D., FACPM, co-author and the first Sir Richard Doll Professor of Medicine and Preventive Medicine, Schmidt College of Medicine. “Our findings may aid health care providers and policy makers, especially in regions of highest risk.”

The researchers also report that as of 2022, rates from deaths of despair among Black individuals were higher than white individuals and were highest among American Indian or Alaska Natives.

“Tackling the rise in deaths of despair requires a multi-faceted approach, combining medical, social and economic interventions,” said , M.D., FACPM, FASAM, first author and a professor in the Department of Population Health and Social Medicine, Schmidt College of Medicine. “Research to elucidate their risk factors is crucial, along with evidence-based policies to reduce them. The medical community also should continue to advocate for including social determinants of health in disease classification systems like the ICD to ensure they are addressed in clinical practice and public health policy.”

The final study co-author is Robert S. Levine, M.D., FACPM, an affiliate professor of family medicine, Schmidt College of Medicine.

- FAU -

About the Charles E. Schmidt College of Medicine:

Florida Atlantic University’s Charles E. Schmidt College of Medicine is one of approximately 159 accredited medical schools in the U.S. The college was launched in 2010, when the Florida Board of Governors made a landmark decision authorizing FAU to award the M.D. degree. After receiving approval from the Florida legislature and the governor, it became the 134th allopathic medical school in North America. With more than 170 full and part-time faculty and more than 1,300 affiliate faculty, the college matriculates 80 medical students each year and has been nationally recognized for its innovative curriculum. The college offers M.S. (thesis and non-thesis) and Ph.D. programs in biomedical science, along with a certificate in genomics and precision medicine. Taught by top researchers, the curriculum combines cutting-edge coursework with hands-on learning, preparing graduates for careers in medicine, research, industry, and academia. To further Florida Atlantic’s commitment to increase much needed medical residency positions in Palm Beach County and to ensure that the region will continue to have an adequate and well-trained physician workforce, the FAU Charles E. Schmidt College of Medicine Consortium for Graduate Medical Education (GME) was formed in fall 2011 with five leading hospitals in Palm Beach County. The consortium currently has five Accreditation Council for Graduate Medical Education (ACGME) accredited residencies including internal medicine, surgery, emergency medicine, psychiatry, and neurology, and five fellowships in cardiology, hospice and palliative care, geriatrics, vascular surgery, and pulmonary disease and critical care medicine. The college also manages the Florida Atlantic University Medical Group, offering comprehensive primary care, and the Marcus Institute of Integrative Health specializes in integrative pain management, precision therapies, and mental health. A 2023 partnership with Broward Health expands academic medicine, clinical training, and research opportunities.

About Florida Atlantic University: Florida Atlantic University, established in 1961, officially opened its doors in 1964 as the fifth public university in Florida. Today, Florida Atlantic serves more than 30,000 undergraduate and graduate students across six campuses located along the Southeast Florida coast. In recent years, the University has doubled its research expenditures and outpaced its peers in student achievement rates. Through the coexistence of access and excellence, Florida Atlantic embodies an innovative model where traditional achievement gaps vanish. Florida Atlantic is designated as a Hispanic-serving institution, ranked as a top public university by U.S. Â鶹´«Ã½ & World Report, and holds the designation of “R1: Very High Research Spending and Doctorate Production” by the Carnegie Classification of Institutions of Higher Education. Florida Atlantic shares this status with less than 5% of the nearly 4,000 universities in the United States. For more information, visit .