About 30% of COVID-19 patients developed the information known arsenic long COVID, UCLA researchers said successful a survey published successful the Journal of General Internal Medicine.
The UCLA researchers studied 1,038 radical enrolled successful the UCLA COVID Ambulatory Program betwixt April 2020 and February 2021. Researchers recovered that 309 of them developed agelong COVID.
A agelong COVID diagnosis came if a diligent answering a questionnaire reported persistent symptoms 60-90 days aft they were infected oregon hospitalized. The astir persistent symptoms were fatigue (31%) and shortness of enactment (15%) successful hospitalized participants. Among outpatients, 16% reported losing sense of smell.
The study’s findings disagree from earlier research. The University of California-Davis, for example, estimated that 10% of COVID-19 patients make long-haul symptoms. A 2021 survey from Penn State University found that much than fractional of worldwide COVID-19 patients would make agelong COVID.
Part of the discrepancy tin blamed connected the information determination is nary official, wide accepted explanation of agelong COVID. The CDC has said it means patients who acquisition “new, returning, oregon ongoing wellness problems 4 oregon much weeks aft an archetypal infection” the coronavirus. The UCLA study, meanwhile, included patients inactive having symptoms 60 to 90 days aft infection.
Still, the UCLA probe squad looked astatine demographics and objective characteristics successful an effort to make effectual treatments.
People with a past of hospitalization, diabetes, and higher body wide index were astir apt to make agelong COVID, researchers said. The benignant of security the patients had besides seemed to beryllium a factor, though the researchers didn’t connection a crushed why.
“Surprisingly, patients with commercialized security had treble the likelihood of processing [long COVID] compared to patients with Medicaid,” according to the study. “This relation volition beryllium important to research further to recognize if security presumption successful this radical is representing unmeasured demographic factors oregon exposures.”
Older age, and socioeconomic presumption were not associated with agelong COVID successful the survey -- a astonishment due to the fact that those characteristics are often linked with terrible unwellness and higher hazard of decease from COVID-19, UCLA said.
Weaknesses successful the survey see the subjective quality of however patients rated their symptoms and the constricted fig of symptoms evaluated, UCLA said.
“This survey illustrates the request to travel divers diligent populations … to recognize the agelong COVID illness trajectory and measure however idiosyncratic factors specified arsenic pre-existing co-morbidities, sociodemographic factors, vaccination presumption and microorganism variant benignant impact benignant and persistence of agelong COVID symptoms,” said Sun Yoo, MD, wellness sciences adjunct objective prof astatine the UCLA schoolhouse of medicine.