​FOI Reference: FOI/2021/3353

You asked

Which cycle threshold(ct) are you using in your hospital in PCR test for patient and staff since the declaration of the pandemic in 2020?

We said

Thank you for your request.

Our COVID-19 Infection Survey (CIS) is a household survey. Our statistics refer to the number of current COVID-19 infections within the population living in private residential households. We exclude those in hospitals, care homes and/or other communal establishments. In communal establishments, rates of COVID-19 infection are likely to be different.

The CIS is not responsible for setting the cycle threshold (ct) used on RT-PCR tests to determine a positive test in hospitals. Therefore, we do not hold the requested information. The UK Health Security Agency (UKHSA) may be able to provide you with the data you are looking for. They can be contacted using the following email address; informationrights@ukhsa.gov.uk.

However, you may be interested in the technical dataset accompanying our latest bulletin, where you can find the percentage of COVID-19 positive cases by gene pattern and Ct value for each of the four UK nations on tab 1a.

Further information and an overview of data about the coronavirus (COVID-19) pandemic from the Office for National Statistic (ONS) and other sources can be found in our Coronavirus (COVID-19) latest insights tool.