People hospitalized for Covid-19 double their risk of hospital readmission and death
People who have been hospitalized for Covid-19 for at least a week are more than twice as likely to die or be readmitted to hospital in the coming months compared to the general population. This is confirmed by a study carried out by researchers from the
Oxford University London School of Hygiene and Tropical Medicine (UK) which is published in «
There have been previous studies that have suggested that people who have had Covid-19 may be at increased risk of health problems several months after infection. However, the evidence on this topic remains limited.
To give a definitive answer, the team at Krishnan Bhaskaran performed a statistical analysis of electronic health records from the database
OpenSAFELY, evaluating data from almost 25,000 patients who had been discharged after being hospitalized for Covid-19 in 2020 and, for comparison, those from more than 100,000 people with no history of Covid-19.
The analysis showed that, compared to the general population, people who had been hospitalized for Covid-19 and lived at least one week after discharge had a twofold overall risk of hospital readmission or death in subsequent months. They also had a nearly five times higher risk of death from any cause.
In order to compare with other infectious diseases, the researchers also considered data from more than 15,000 people who had been hospitalized for gripe during the 2017-19 season.
Statistical analysis found that compared to flu patients, Covid-19 patients faced a slightly lower combined risk of hospitalization or death overall. However, people who had been hospitalized for Covid-19 had a higher risk of death from any cause than flu patients, a higher risk of hospital readmission or death as a result of their initial infection, and a higher risk of death from dementia. .
In general, these findings are consistent with other research showing an increased risk of later health problems for people who have had Covid-19.
The authors suggest that these risks could be mitigated by policies that increase follow-up of Covid-19 patients after discharge and raise awareness of possible complications.
“Our findings suggest that people who have had severe COVID-19 requiring hospitalization are at substantially increased risk of experiencing further health problems in the months after their hospitalization,” says Bjaskaran.
Likewise, he adds, “the data highlights the importance of getting vaccinated, which is the best tool we have to prevent severe Covid-19.”