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Over the past two decades, more Black men have died from obstructive sleep apnea than have white people or Black women, a new study shows.

Further, deaths of Black men from sleep apnea have continued to rise, in contrast to rates that have flattened for white people and Black women.

The study in Sleep Medicine identifies for the first time this significant racial health disparity in mortality resulting from sleep apnea.

“Despite several epidemiologic studies focusing on the prevalence, risk factors, and clinical presentations of sleep apnea, no study, to our knowledge, has evaluated the disparity of sleep apnea-related mortality among different racial groups,” says first author Yu-Che Lee, a medical resident in the Jacobs School of Medicine and Biomedical Sciences at the University at Buffalo.

“We therefore brought up an idea to do the research discussing the difference of sleep apnea-related mortality and mortality trends from 1999 to 2019 between Black and white Americans.”

To conduct the study, the researchers examined sleep apnea-related mortality for the years 1999-2019 from the National Center for Health Statistics, provided by the Centers for Disease Control and Prevention.

Sleep apnea is the most common sleep-related breathing disorder and has been associated with the development of systemic hypertension, cardiovascular morbidity and mortality, and abnormalities in glucose metabolism.

Lee and his colleagues found a steady increase in mortality from the years 1999 to 2008, but then the rates flattened for Black females and for white males and females. That flattening suggests that medical management and public health interventions have helped stabilize outcomes in these groups.

Black males were the only group that saw a continuous increase in mortality from sleep apnea for the 21 years of the study.

“Our study showed that Black men were the only demographic group to have a continuous sleep apnea mortality increase in the last 10 years, which is truly concerning,” says Lee.

A combination of factors, including compliance with continuous positive airway pressure (CPAP) machines, likely contribute to this continuous increase in sleep apnea mortality among Black men, the researchers say.

“The literature suggests that compliance with CPAP is lower in patients who are Black, are of lower socioeconomic class, and may have lower health literacy,” says coauthor M. Jeffery Mador, associate professor in the department of medicine in the Jacobs School.

“It is extremely likely that deaths occurred because the subjects were untreated or poorly compliant with therapy,” Mador continues. “CPAP therapy is highly effective and very few deaths, if any, would be expected if the subjects were adequately treated, followed, and were able to use the therapy.”

Clinicians may have opportunities to help, he says. “We have noticed that there is room for improvement in terms of optimizing CPAP usage in our own patients who display the above factors.”

Another striking finding in the study is what the researchers saw as “remarkable” geographic differences in mortality from sleep apnea. The study found the highest age-adjusted mortality rates in the Midwest for both genders in Black and white people, while the lowest mortality rates were seen among Black males in the West and Black females and white males and females in the Northeast.

Among states, Indiana had the highest age-adjusted mortality rate from sleep apnea for Black people, while Utah had the highest mortality rate for white people. New York had the lowest mortality rates for Black and white people.

“Sleep apnea is relatively underdiagnosed in the general population, but this problem may be greater in Black patients,” Mador says.

“Even when diagnosed, successful treatment is lower in Black people than the general population,” he adds. “Untreated sleep apnea is associated with higher levels of hypertension, heart disease, stroke, and diabetes, all of which are common in Black patients. Hopefully, increasing awareness and improving efficacy of treatment may lead to better health outcomes in this patient population.”

“This is the first study to demonstrate the disparities of sleep apnea-related mortality and different mortality trends between Black and white Americans,” says Lee. “These findings should give clinicians some insights into the problem to develop more tailored strategies and treatments to reduce racial disparities in outcomes from sleep apnea.”

Ko-Yun Chang of Taichung Veterans General Hospital in Taiwan is a coauthor of the study.

Source: University at Buffalo

Original Study DOI: 10.1016/j.sleep.2021.11.014
"The object in life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane." -- Marcus Aurelius
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No one actually *wants* to look like a jet fighter pilot all hosed up, or deal with a hose flopping around in bed, or live with the perceived embarrassment of looking "goofy" to their bed partner, or deal with the equipment cleaning and DME visits or paperwork for funding and all that.
But we do it to extend our lives and have more energy for day to day living.

Severe untreated apnea, severe enough to cause a mortality bump as indicated in this article, also means that there is the associated bump in people falling asleep at the wheel.
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