A holiday treat of more research summaries, mixed with a couple of observations on our fearful leaders.

A randomized control, peer-reviewed study in JAMA finds that carbon dioxide levels in children's masks are far above those considered safe.

A lot of interesting research in the last couple of days, take a couple of posts to catch up.

Hospitals have list prices far, far above their actual cost of delivering services.

The national case animation shows shifting geographic patterns.

The pattern of deaths is pretty similar to that of cases, as you might expect.

Some age group animations on key epidemic metrics.

Population unit pictorials of epidemic stats.

How much you test determines how many cases, and non-cases, you find.

The Kaiser Family Foundation provides a lot of useful info on Medicare Advantage.

Why should what setting a health service is delivered in make a difference in the price?

A very revealing report about deaths in the US in 2020 from the Society of Actuaries.

Research on the usual topics, including vaccination effects, keeps being published, so I keep summarizing it.

Another chart that shows how much impact mask wearing made in two countries with very different approaches.