Thanks for the meta-analysis reference. The 141-259% range tracks with what I see in the HCRIS data. The variance across hospitals is enormous — even within the same bed-size category, the P75/P25 ratio for cost-to-charge is 2.5-3.4x. Hospitals in the same peer group are charging wildly different amounts for equivalent services. All the scripts are in the repo if you want to dig into the hospital-level data: github.com/rexrodeo/american-healthcare-conundrum