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Life Expectancy Gap Between Men and Women Is Widening

Women have been outliving men for more than a hundred years. But a recent study found that this gap in life expectancy has been widening for more than a decade. This gap is now 5.8 years. Life expectancy (combined for both men and women) was 78.8 years in 2019 (pre-Covid 19), but was 76.1 years in 2021.

Why is this gap widening? The main reasons for men's life expectancy decreasing are Covid-19 and opioid overdoses. Other reasons are suicide, accidents (unintentional injuries), heart disease, and alcoholic liver disease.

On the other hand, the gap may be shrinking since the development of Covid vaccines and better treatments, as well as widely available overdose treatments (Naloxone).

From Science Daily: US men die 6 years before women, as life expectancy gap widens

We've known for more than a century that women outlive men. But new research led by UC San Francisco and Harvard T.H. Chan School of Public Health shows that, at least in the United States, the gap has been widening for more than a decade. The trend is being driven by the COVID-19 pandemic and the opioid overdose epidemic, among other factors.

In a research paper, published Nov. 13, 2023, in JAMA Internal Medicine, the authors found the difference between how long American men and women live increased to 5.8 years in 2021, the largest it's been since 1996. This is an increase from 4.8 years in 2010, when the gap was at its smallest in recent history.

The pandemic, which took a disproportionate toll on men, was the biggest contributor to the widening gap from 2019-2021, followed by unintentional injuries and poisonings (mostly drug overdoses), accidents and suicide.

Life expectancy in the U.S. dropped in 2021 to 76.1 years, falling from 78.8 years in 2019 and 77 years in 2020.

The shortening lifespan of Americans has been attributed in part to so-called "deaths of despair." The term refers to the increase in deaths from such causes as suicide, drug use disorders and alcoholic liver disease, which are often connected with economic hardship, depression and stress.

Using data from the National Center for Health Statistics, Yan and fellow researchers from around the country identified the causes of death that were lowering life expectancy the most. Then they estimated the effects on men and women to see how much different causes were contributing to the gap.

Prior to the COVID-19 pandemic, the largest contributors were unintentional injuries, diabetes, suicide, homicide and heart disease.

But during the pandemic, men were more likely to die of the virus. That was likely due to a number of reasons, including differences in health behaviors, as well as social factors, such as the risk of exposure at work, reluctance to seek medical care, incarceration and housing instability. Chronic metabolic disorders, mental illness and gun violence also contributed.

Yan and co-authors, including senior author Howard Koh, MD, MPH, professor of the practice of public health leadership at Harvard Chan School, also noted that further analysis is needed to see if these trends change after 2021.

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