FIGURE 5. Relative hospital margin per OR HR is correlated with RVU per OR HR, but less so on a per-case basis, with R² = 0.39 and P = 0.013. Mean RVU/OR HR was 7.10 (standard deviation = 1.56) with a range from 5.23/hr (otorhinolaryngology) to 10.97/hr (transplant surgery). Mean RHM/OR HR was 94.54 mu/hr (standard deviation = 81.56) with a range from a loss of 3.83 mu/hr (plastic surgery) to a gain of 275.74 mu/hr (transplant surgery). GIS, gastrointestinal surgery; TXP, liver, kidney, and pancreas transplant; CRS, colorectal surgery division; EOS, endocrine and oncologic surgery; ORL, otorhinolaryngology; TraumSC, trauma and surgical critical care; GYN, gynecologic surgery; Ortho, orthopedic surgery; OMFS, oral maxillofacial surgery.