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    • Long COVID symptoms create a greater burden of disability than heart disease or cancer, new study shows

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    People who survived COVID-19 early in the pandemic, before there were vaccines, continued to be at higher risk for a slew of health problems for up to two years after they got over their initial infections, , and that was especially true if they were hospitalized.

    These health problems include heart problems, blood clots, diabetes, neurologic complications, fatigue and difficulties with mental health and have come to be known collectively as long COVID.

    When researchers tallied the risks for more than 80 different complications that are associated with long COVID, they translated the collective toll into a metric called a disability adjusted life year, or DALY. Each DALY represents one year of healthy life lost to illness. They found that long COVID generated more than 80 disability-adjusted life years, or DALYs, for every 1,000 people who weren鈥檛 hospitalized for their initial infection.

    That means long COVID creates a higher burden of disability than either heart disease or cancer, which cause about 52 and 50 DALYs for every 1,000 Americans, respectively, according to the Institute for Health Metrics and Evaluation鈥檚 Global Burden of Disease study.

    鈥淲hen I looked at that initially, I was really shocked,鈥 said study author Dr. Ziyad Al-Aly, who is director of the clinical epidemiology center at the Veterans Affairs St. Louis Health Care System. 鈥淭hat鈥檚 actually a huge number.

    鈥淲e did the analyses multiple times and, and then it just always can come back to be to be the same.鈥

    After considering their findings, though, Al-Aly said it really shouldn鈥檛 be such a huge surprise that long COVID is so disabling, because it affects so many different parts of the body.

    Al-Aly said his study should be a wake-up call.

    鈥淚 think that we need to understand that infections lead to chronic disease and we need to take infection seriously,鈥 even when it seems to be mild, Al-Aly said.

    The study, which was published Monday in the journal Nature Medicine, looked at the medical records of nearly 140,000 veterans who survived for 30 days after getting a COVID-19 infection in 2020, and compared their health outcomes to nearly 6 million other patients in the VA health system who had no evidence of infection.

    The study has some important caveats. On average, the people in the study were older, in their 60s, and almost 90% were male, so the findings may not translate to those who are younger or to women.

    None of the people in the study were vaccinated at the time they were infected because the vaccines had not been developed yet, and there weren鈥檛 yet antiviral treatments targeted to COVID-19. Studies have since shown that vaccination and early treatment can help curb long COVID risk.

    The researchers only included people in the COVID-19 infection group if they had a positive test, but tests were slow to roll out early in the pandemic, and the researchers say many people may have had the infection with no test results recorded in their medical records. That may have resulted in some people being included in the control group when they should have been in the infection group. If that was a large number of people, the study authors say, their results may be an underestimation of the true risks people faced post-infection.

    Al-Aly said he used this group because he wanted to learn more about the long-term outcomes for people who get COVID-19, and he needed to find patients who were more than two years past their infections, so these risks may have gone down over time as vaccines and better treatments were developed.

    Still, the study paints a sobering picture of how long people faced physical consequences from early infections.

    The study found people who were not hospitalized with COVID-19, still had an elevated risk of death for about six months after they first got sick.

    Over the two years, their risk of having many long COVID symptoms went down, but it remained elevated for about one-third of the 77 ailments that were studied. Some of those lingering problems included blood clots, a slower than normal heartbeat, fatigue, diabetes, gastrointestinal problems, sleep problems, muscle and joint pain, headache, hearing and smell loss, and autonomic nervous system dysfunction.

    People in the group who had to be treated in the hospital for an initial COVID-19 infection fared even worse. They remained at increased risk for death and hospitalization for at least two years after they recovered from their acute symptoms.

    Out of 77 different long COVID issues studied, people who were hospitalized remained at elevated risk for about two-thirds of them even two years later. These included heart problems, stomach problems, memory and thinking difficulties, blood clots, diabetes and lung problems. They were also more likely to have a substance use disorder, including for alcohol and opioids. They were also more likely to report contemplating suicide.

    鈥淥ur findings highlight the substantial cumulative burden of health loss due to long COVID, and emphasize the ongoing need for health care for those faced with long COVID,鈥 said Al-Aly.

    鈥淚t appears that the effects of long COVID for many will not only impact such patients and their quality of life, but potentially will contribute to a decline in life expectancy, and also may impact labor participation, economic productivity, and societal well-being.鈥

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