Data Literacy

In many countries, life expectancy dropped substantially in 2020 due to COVID. Did life expectancy bounce back in 2021, or did things get even worse? TL;DR: A mixed bag, w/ greater divergence of experiences as the pandemic wore on. While Western Europe saw improvements from 2020, the US and Eastern Europe saw continued losses. Read Read more…

A: Not necessarily. Despite the name, life expectancy doesn’t predict the lifespan of individuals. But as a “snapshot” of mortality in the US, the news is not good. Recent U.S. CDC estimates show a loss of a 2.7 years of life expectancy in 2021 compared to 2019. Surprisingly, despite the vaccine roll-out, U.S. life expectancy Read more…

Results of medical studies are often reported in the news. You may have seen headlines like “What vegetable on your dinner plate is killing you?” or “New study shows Medicine X causes memory loss!” You are, very likely and very appropriately, highly skeptical of these headlines but it can be really tricky to sort out Read more…

A: Good question! Sensitivity and specificity are characteristics of a medical test that help us determine how useful that test is and how to interpret the result. BUT, they aren’t the be all and end all. We also want to know the positive and negative predictive value. Strap in for the ride and let’s talk Read more…

A: Yes- BUT those odds are not as good as they sound. Ask yourself- would you let your family board a plane if 1 out of 100 passengers were going to be thrown out of the plane mid-flight? We continue to hear the “99% survivable” argument as a reason not to get the COVID-19 vaccine. Read more…

A: No. It’s bad. ➡️ The Covid-19 pandemic has resulted in the largest loss of life expectancy seen in many countries since World War II. ⬇️ U.S. males saw some of the worst losses—2.2 years of lost life expectancy in 2020. The drop was 1.65 years for U.S. females. We’ve talked about “excess mortality” in Read more…

A: Sadly, we are most likely UNDER-COUNTING Covid-19 deaths. While the official global death toll from Covid-19 is now 4.6 million, the actual toll is estimated to be close to 15.4 MILLION people. Among the most persistent COVID-19 myths is the idea that COVID-19 deaths are being over-counted, including stories of victims of motorcycle accidents Read more…

A: It turns out, how we describe risks REALLY matters and helps us better understand our healthcare choices. Read below for a review of how risk is calculated and communicated (and can be used for trickery!). The TLDR version: Absolute risk reduction is the number you actually want to know most of the time. Buckle Read more…

A: Sadly, we are most likely UNDER-COUNTING Covid-19 deaths. Among the most persistent COVID-19 myths is the idea that COVID-19 deaths are being over-counted, including stories of victims of motorcycle accidents getting tested in the hospital so they can be counted as COVID-19 deaths, or the infamous line that people are dying *with* COVID-19 rather Read more…

A: Yes- BUT those odds are not as good as they sound. Ask yourself- would you let your family board a plane if 1 out of 100 passengers were going to be thrown out of the plane mid-flight? Would you literally throw caution to the wind if a tornado was headed for your town that Read more…

Q: Wouldn’t lots of people dying of COVID19 be dying from other causes anyway? A: Sadly, we are likely UNDER-counting deaths due to COVID-19. Among the COVID-19 myths that just won’t die, we continue to hear chatter that COVID-19 deaths are being over-counted, such as stories of victims of motorcycle accidents getting tested in the Read more…