vaccination

195 posts
Simpson’s Paradox in vaccination data

This chart, made by someone who is against vaccinations, shows a higher mortality rate for those who are vaccinated versus those who are not. Strange. It shows real data from the Office of National Statistics in the UK. As explained by Stuart McDonald, Simpson’s Paradox is at play: [W]ithin the 10-59 age band, the average unvaccinated person is much younger than the average vaccinated person, and therefore has a lower...

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Euler diagram to illustrate base rate fallacy

Some people point out that vaccinated people are still hospitalized as a defense against getting vaccinated. But they ignore the inverse which compares the number of those who are not hospitalized. Someone (source?) made this Euler diagram to illustrate the inverse. It’s about making a fair comparison. People who wear seat belts can still die in a car collision. People who use contraception can still get STIs. People who eat...

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Communicating effectiveness of boosters

Statisticians David Spiegelhalter and Anthony Masters for The Guardian on reframing risk estimates: An earlier UKHSA study estimated two Pfizer/BioNTech doses gave around 99.7% (97.6% to near-100%) protection against Delta-infected hospitalisation, but after 20 weeks that effectiveness waned to 92.7% (90.3% to 94.6%). This estimated decline for people over 16 may not sound much, but if we look at it in terms of “lack of protection”, their estimated vulnerability relative...

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Cases, hospitalizations, and deaths for vaccinated vs. unvaccinated

The CDC released a chart that shows case, hospitalization, and death rates for fully vaccinated (blue) against not fully vaccinated (black). As you might expect, the rates for the fully vaccinated are much lower, especially for hospitalizations and deaths. Tags: CDC, coronavirus, unvaccinated, vaccination

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How vaccines can make a difference with the Delta variant

We see percentages for the vaccinated and unvaccinated, and people can easily misinterpret or miscommunicate the results. It’s especially problematic when people are actively trying to confirm misconceptions. For The New York Times, Lauren Leatherby tries to make things clearer imagining two groups: one that is 20% vaccinated and one that is 95% vaccinated. Vaccines work. Tags: coronavirus, Delta variant, Lauren Letherby, New York Times, vaccination

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Decline of U.S. vaccination rate compared against Europe’s

Elian Peltier and Josh Holder for The New York Times highlight the vaccination rates increasing in Europe while the United States rate stalls: Europe has plenty of people who distrust the shots and their governments, but vaccine resistance in the United States is more widespread and vehement, particularly among conservatives, and falls more sharply along partisan lines. The E.U. vaccination effort has slowed recently, but not like the U.S. drive,...

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Slowing and then renewed interest in getting vaccinated

When countries gained access to vaccines, there was an initial burst of vaccinations, but the rate leveled off in most places. Then a variant arrives, and an incentive or another push for vaccinations increases the rate. Reuters looks at the rate shift in different countries, in the context of trying to reach 70 percent vaccinated. The set of difference charts took me a minute to digest, but then seems straightforward...

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Hospitalization rates for the unvaccinated

Overall, Covid-19 cases and hospitalizations are down in the United States, but much of that is from vaccinations. When you look at only those who are not vaccinated, the rates are still high in many areas of the country. Dan Keating and Leslie Shapiro for The Washington Post show the differences. Tags: coronavirus, vaccination, Washington Post

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Four types of people who prevent full vaccination

The United States vaccination rate was rolling for a while there, but it has slowed down. Sema Sgaier for NYT Opinion talks about why that is, breaking it down to four general types of people who are hesitant or don’t plan on getting vaccinated: After conducting a national survey of U.S. adults, we grouped people into distinct profiles based on their shared beliefs and barriers to getting the vaccine. This...

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Voting and vaccination rate

Danielle Ivory, Lauren Leatherby and Robert Gebeloff for The New York looked at voting from the 2020 election and vaccination rates at the state and county levels. The strength of correlation is surprising. The existence of the correlation is not. Tags: coronavirus, election, New York Times, vaccination

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