Next time you watch a news report showing Tory statistics on the number of Covid-19 tests published out per day, bear in mind that the numbers are deliberately wrong – and that comes from the highest authority in the United Kingdom.

The Tories are hiding the facts about Covid-19 testing by blurring their definition of  test, in order to maximise the number of tests they can report. This comes from Sir David Norgrove, chair of the UK Statistics Authority.

This Writer has corresponded with the UKSA on several previous occasions and you can take it from me: if the UKSA is saying something, you can be sure it is right.

He’s saying the way the Tories present their results is deliberately obstructing the purpose for which they are supposed to be carried out.

“Statistics on testing perhaps serve two main purposes,” he writes.

“The first is to help us understand the epidemic, alongside the ONS survey, showing us how many people are infected, or not, and their relevant characteristics.

“The second purpose is to help manage the test programme, to ensure there are enough tests, that they are carried out or sent where they are needed and that they are being used as effectively as possible. The data should tell the public how effectively the testing programme is being managed.”

He continues: “The way the data are analysed and presented currently gives them limited value for the first purpose. The aim seems to be to show the largest possible number of tests, even at the expense of understanding.

“It is also hard to believe the statistics work to support the testing programme itself.”

Of course the obvious problem gets an airing: “The headline total of tests adds together the tests carried out with tests posted out… There are no data on how many of the tests posted out are in fact then successfully completed.”

And this has also been brought to public attention: “The notes to the daily slides rightly say that some people may be tested more than once and it has been widely reported that swabs carried out simultaneously on a single patient are counted as multiple tests. But it is not clear from the published data how often that is the case.”

Moving on to the way the tests are presented to the public, Sir David reveals that “this presentation gives an artificially-low impression of the proportion of tests returning a positive diagnosis” – because the number of tests carried out has been artificially inflated, you see.

“More generally the testing figures are presented in a way that is difficult to understand. Many of the key numbers make little sense without recourse to the technical notes which are themselves sometimes hard to follow… Supporting spreadsheets… make it difficult to extract even basic trends.”

Perhaps crucially, Sir David moves on to criticise information that is omitted from test reports: “How many people in what circumstances are infected? Where do they live?

“Test results should include for example key types of employment (e.g. medical staff, care staff), age, sex and location (by geography and place, such as care homes).”

The implication is clear: figures derived from the testing programme are no good at all.

And Sir David lays down a serious warning about the new “Test and Trace” scheme: “Statistics will need to be capable of being related to the wider testing data and readily understood by the public, through for example population-adjusted maps of hotspots.

“The testing statistics still fall well short of… expectations. It is not surprising that, given their inadequacy, data on testing are so widely criticised and often mistrusted.

Here’s Sir David’s letter:

The letter has prompted a strong response – including from some former Conservatives:

Calm but devastating criticism of the misuse of statistics by govt & why that matters. Time for those leading the response to this deadly virus to stop the spin & listen https://t.co/lFOZUgCIJN

— Sarah Wollaston (@sarahwollaston) June 2, 2020

Will the Tories pay attention?

I think they probably will.

This is criticism from an incorruptible authority on statistics and, should an inquiry take place into government handling of Covid-19 (and I think one will), the Tories will need the UK Statistics Authority on their side.

If they don’t get that support, then they’ll be in serious trouble.

Have YOU donated to my crowdfunding appeal, raising funds to fight false libel claims by TV celebrities who should know better? These court cases cost a lot of money so every penny will help ensure that wealth doesn’t beat justice.

https://www.crowdjustice.com/case/mike-sivier-libel-fight/

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