Substance abuse drives decrease in life expectancy in U.S., Ky.

Charts from report show impact of drug overdoses; ages 45-54 showed an increase almost as steep.

By Al Cross
Kentucky Health News

Americans are dying younger, and Kentucky is a big part of that.

The most basic measurement of a population's health, life expectancy at birth, has decreased in the United States for three straight years, and in Kentucky for four. The leading cause is drug overdoses, but there are many other factors.

In 2000, Kentucky had a mortality rate of 425 deaths per 100,000 people; in 2017, the rate was 512 per 100,000, an increase of 20 percent. Most of that increase, 14.7 percentage points, occurred from 2010 to 2017, according to a study published in the Journal of the American Medical Association.

Eight states had greater increases: New Hampshire, 23.3%; West Virginia, 23%; Ohio, 21.6% Maine, 20.7%; Vermont, 19.9%; New Mexico, 17.5%; South Dakota, 15.5%; and Indiana, 14.8%.

The study calculated the "excess deaths" caused in 2010-17 by the increase in midlife mortality, defined as deaths of people aged 25 to 64. It said there were 1,524 excess deaths in Kentucky, 1,839 in Indiana, 3,179 in Pennsylvania (where the mortality rate rose 14.4%) and 4,730 in Ohio. The study report said higher midlife mortality in 2010-17 "was associated with an estimated 33,307 excess U.S. deaths, 32.8% of which occurred in four Ohio Valley states."

The report said, "The increase in opioid-related deaths is only part of a more complicated phenomenon and does not fully explain the increase in midlife mortality rates from other causes, such as alcoholic liver disease or suicides (85.2% of which involve firearms or other non-poisoning methods.) . . . Two recent studies estimated that drug overdoses accounted for 15% or less of the gap in life expectancy between the United States and other high-income countries in 2013 and 2014, respectively."

Other possible causes include high rates of tobacco use (including effects that linger despite lower smoking rates), obesity and socioeconomic factors: "substantial job losses in manufacturing and other sectors, contraction of the middle class, wage stagnation, and reduced inter-generational mobility. Income inequality widened, surpassing levels in other countries, concurrent with the deepening U.S. health disadvantage. . . . Increases in death rates were concentrated in areas with a history of economic challenges, such as rural U.S. areas and the industrial Midwest."

The study was done by Dr. Steven Woolf of Virginia Commonwealth University in Richmond and Dr. Heidi Schoomaker of Eastern Virginia Medical School in Norfolk.