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Danish study concludes '36 percent' lower risk of Covid-19 hospitalisation with Omicron variant

Ritzau/The Local
Ritzau/The Local - [email protected]
Danish study concludes '36 percent' lower risk of Covid-19 hospitalisation with Omicron variant
Faglig direktør i Statens Serum Institut Tyra Grove Krause, da Børne- og Undervisningsministeriet holder pressemøde omkring rammerne for børnenes tilbagevenden til skole efter nytår, herunder test, vaccination og trivsel, i Eigtveds Pakhus i København, tirsdag den 21. december 2021.. (Foto: Philip Davali/Ritzau Scanpix)

A study conducted by researchers in Denmark has concluded that the risk of hospitalisation is lower with the Omicron variant of Covid-19 compared to the Delta variant.

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The results of the study were announced by the national infectious disease agency State Serum Institute (SSI) in a statement.

The study is in pre-print form, meaning it is yet to undergo peer review.

It nevertheless represents positive news in the battle to emerge from the Covid-19 pandemic, according to SSI’s medical director Tyra Grove Krause.

A lower risk of hospitalisation is seen “in both vaccinated and unvaccinated” individuals, Krause said.

“That’s a sign Omicron is less dangerous than Delta in itself,” she said.

“Furthermore, we can see during the period covered by the study that vaccination can prevent three out of four hospital admissions – both Omicron and Delta-related – in people who test positive (for Covid-19),” she added.

The number of positive tests registered each day in Denmark is currently higher than at any other time during the pandemic, with over 39,000 registered on Wednesday and the total topping 40,000 for the first time on Thursday according to SSI’s most recent update.

Last winter, the daily figure did not exceed 5,000 at any time and only exceeded 4,000 on a handful of occasions.

But the number of people in hospital with Covid-19 stands at 825 on Thursday, a lower number than the highest number during the 2020/21 winter, which was 964 on January 4th last year.

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Around 190,000 people who tested positive for Covid-19 between November 21st and December 19th 2021 are included in the study.

The analysis looked at how many were admitted to hospital with the virus and which variant they were infected with.

Around 39,000 were infected with the Omicron variant, with the remainder considered to have been infected with Delta, which was the dominant form in Denmark at the time.

Of those who were infected with the Omicron variant, 222 or around 0.6 percent were admitted to hospital. For those with Delta, 2,213 or around 1.5 percent were hospitalised.

When other factors including sex, age and underlying conditions are corrected for, researchers found that the risk of hospitalisation was 36 percent lower with Omicron.

The study does not take into account the severity of the illness of those who were admitted to hospital with either variant.

“But several studies from abroad suggest that Omicron is also associated with a more mild illness, based on shorter hospital stays and lower risk of intensive care and death in relation to data,” Krause said.

READ ALSO: The Covid-19 restrictions now in effect in Denmark

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