Author: René F. Najera, DrPH

I'm a Doctor of Public Health, having studied at the Johns Hopkins University Bloomberg School of Public Health. All opinions posted here are my own, of course, and they do not necessarily reflect the opinions of my school, employers, friends, family, etc. Feel free to follow me on Twitter: @EpiRen

Epi 101: Indirect Age Adjustment by Hand and in R

Sometimes, age-specific death counts are hard to come by. Something happened that doesn’t allow you to know how many people died in each age group, but you know the total number of people who died. So how do you account for differences in the age distribution of the population? Glad you asked!

What if Vaccines Are Harmful?

If vaccines are as bad as anti-vaccine people and groups claim that they are, where is the evidence? We’ve seen other diseases and conditions be identified and dealt with. Why not these bad vaccine outcomes? Could it be that it’s not as bad as antivaxxers say it is?

Canary Coal Mine

The Canaries in the Coalmine

Anecdotes are not data, but they could be canaries in the coal mine that are still worth looking into. If we don’t do due diligence and look into them, what could happen? What could we delay or even miss out on doing?

Poopooing the P-Value

Have we become too dependent on the p-value being greater than or less than 0.05 in order to make our decisions? Yes. Probably. Maybe. I’m 95% confident we have…

The Student-As-a-Customer Model Will Be the End of Academia

More and more colleges and universities are treating students as customers, showing them how to push a button or fill in a formula without teaching them how to think and solve problems. I might be old school, but I’d rather train and mentor my future colleagues instead of just showing students how to push a button.

One-Way ANOVA Analyses, by Hand and in R

A student asked for help with a statistical analysis the other night, and I was happy to help. However, he threw me a curveball when he told me he needed to conduct an ANOVA test using only summary data. That is, all he had was the table of results (from a publication) and not the data. Doing an ANOVA by…