I know my treatment doesn't work across a large population but what about subgroups?! Ah yes. Subgroups. Subgroups are absolutely a thing but how do we go about defining them? Do we just track everyone we treat then look back to see who responded and who didn't? Or is it more complicated than that? Find out on this dynamite episode of Nobel proportions!

Evaluation of Evidence of Statistical Support and Corroboration of Subgroup Claims in Randomized Clinical Trials. Wallach JD, Sullivan PG, Trepanowski JF, Sainani KL, Steyerberg EW, Ioannidis JP. JAMA Intern Med. 2017 Feb 13. doi: 10.1001/jamainternmed.2016.9125. [Epub ahead of print]

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Music for PT Inquest: "The Science of Selling Yourself Short" by Less Than Jake Used by Permission