#Prevalence

Dr Clare Craig

ClareCraigPath

SAGE is using a figure of 1% false positive results. I think it is a little lower ~0.8% for Pillar 2. False positives are a function of the population tested

Bill Gardner

Bill_Gardner

1 | Election polling failed in 2020, the most striking example being perhaps the failure of any poll to predict Susan Collins' re-election.Unfortunately, the problem with surveys affects more than

Yardley Yeadon

MichaelYeadon3

Please remember, as tonight’s breaking news breathlessly (& irrelevantly) tell us the “R is close to or above 1.0!!!”, that’s it’s an ARTEFACT. The ratio of positive tests to total

Dr Zoë Hyde

DrZoeHyde

(1/5) Study of #SARSCoV2 antibody prevalence in children from Bavaria, Germany, showing infections in children were 6 times higher than PCR tests suggested, and that young & older children were

Alasdair Munro

apsmunro

New findings from Swiss seroprevalence and an good opportunity to learn some more infectious disease epidemiology!A similar prevalence in children aged 6 - 18 y (23%) than the adult population

Adam Briggs

ADMBriggs

This is v helpful thread from @scienceshared.One thing missing is positive predictive and negative predictive values (PPV and NPV) that crucially depend on what proportion of people being tested have

Kylie Ainslie

DrKAinslie

Our latest results from the REACT-1 study show that prevalence of #COVID19 is increasing in England. Main results are highlighted below. The full (not yet peer reviewed) pre-print is available

Prof Francois Balloux

BallouxFrancois

UK React-1 study update for 4-13 February period:"Prevalence fell substantially across all age groups with highest prevalence among 18- to 24-year olds at 0.89% (0.47%, 1.67%) and those aged 5

Sarah Rasmussen

SarahDRasmussen

THREAD on why1. Primary school transmission depends crucially on child prevalence, not just community prevalence, and2. Why we see delays for primary school transmission to ramp up, if child prevalence

Wes Pegden

WesPegden

This thread from December pointed out that convenience samples are not suitable for any but the coarsest estimates of prevalence, and that the popularity of a prevalence study like this

Emily Porter, M.D.

dremilyportermd

Someone asked me, “If I get both doses of the COVID vaccine, am I safe to go to the Indy 500?” The science says that the vaccine will prevent you

Francesca Solmi

Francesca_Solmi

Our new paper in @JAMAPediatrics . Over the past 30 years the prevalence of dieting/exercising for weight loss has increased in the UK among 14 years old. Thanks to amazing

Chris Musson

ChrisMusson

Nicola Sturgeon has just quoted unpublished figures when questioned about these figures below by @Mike_Blackley, which she branded "inaccurate"FM said as of 8.30am, 34% of over 80s vaccinated in Scotland,

Alex Selby

alexselby1770

Random sample prevalence studies, such as the one out today (REACT-1) or the one published by the ONS, form an extremely valuable piece of the puzzle, but IMHO they are

Friederike Ernst

tw_tter

I would like to talk about antibody tests. There are too many people in my bubble who don't understand why a specificity of say 95% doesn't mean 95% of people

Martin Daubney

MartinDaubney

Q. Why don’t Black Lives Matter care about modern day slavery? A. Could it be because most modern day slave drivers aren’t white? Even though most slaves are from BAME

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