Prevalence and characteristics of long COVID-19 in Jordan: A cross sectional survey

Early in the pandemic, the spread of the emerging virus SARS-CoV-2 was
causing mild illness lasting less than two weeks for most people, with a
small proportion of people developing serious illness or death. However,
as the pandemic progressed, many people reported suffering from symptoms
for weeks or months after their initial infection. Persistence of COVID-19
symptoms beyond one month, or what is known as long COVID-19, is
recognized as a risk of acute infection. Up to date, information on long
COVID-19 among Jordanian patients has not been reported. Therefore, we
sought to conduct this cross-sectional study utilizing a self-administered
survey. The survey asks a series of questions regarding participant
demographics, long COVID-19 symptoms, information about pre-existing
medical history, supplements, vaccination history, and symptoms recorded
after vaccination.  Chi square analysis was conducted on 990
responders, and the results showed a significant correlation
(P<0.05) between long COVID-19 syndrome and age, obesity, chronic
illness, vitamin D intake, number of times infected by COVID-19, number of
COVID-19 symptoms and whether the infection was pre or post vaccination.
The long-term symptoms most enriched in those with long COVID-19 were
tinnitus (73.4%), concentration problems (68.6%) and muscle and joint ache
(68.3%). A binomial logistic regression analysis was done to explore the
predictors of long COVID-19 and found that age 18-45, marital status,
vitamin D, number of COVID-19 symptoms and signs after vaccination are
positive predictors of long COVID-19, while zinc intake is a negative
predictor. Although further studies on long-term persistence of symptoms
are needed, the present study provides a baseline that allows us to
understand the frequency and nature of long COVID-19 among Jordanians.