Say What?

It's sentences like this from this weeks JAMA that keep me from reading as much primary medical literature as I ought:

The minimum OR detectable with 80% power in a 2-sided test with an level of .05 was 1.48 for a rare binary covariate of prevalence 1% and reached a minimum of 1.08 for an exposure of prevalence 50%.

Thanks, guys, that's helpful. This is why I stick to a handful of resources and pray to God that they don't sell out (or haven't already sold out) to the man.