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Healthy sleep behaviors before and during the pandemic may be protective against long COVID, a prospective cohort study suggested.

Of nearly 2,000 women from the Nurses' Health Study II who tested positive for SARS-CoV-2 infection, those with the most healthy prepandemic sleep score had a 30% lower risk of developing long COVID compared with those who had the least healthy scores (multivariable-adjusted relative risk 0.70, 95% CI 0.52-0.94, P<0.001 for trend), reported Siwen Wang, MD, of the Harvard T. H. Chan School of Public Health in Boston, and co-authors.

No or little daytime dysfunction before the pandemic and good sleep quality during the pandemic were independently associated with a lower risk of long COVID (relative risk 0.83, 95% CI 0.71-0.98 and relative risk 0.82, 95% CI 0.69-0.99, respectively), they noted in JAMA Network Open.

These associations did not differ based on healthcare worker status, whether participants provided frontline care or not, Wang and team said. Head over to MedPage Today to read more about it.