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October 2010

Teaching Hospital Status and Operative Mortality in the United States

Author Affiliations

Author Affiliation: Department of Gastrointestinal and Endocrine Surgery, University of Texas Southwestern Medical Center, Dallas, Texas.

Arch Surg. 2010;145(10):1025. doi:10.1001/archsurg.2010.209

Hayanga et al1 assessed mortality following colon resections as reported in the National Inpatient Survey, concluding that outcomes were worse at teaching hospitals (TH) compared with nonteaching hospitals (non-TH). Although this finding was statistically significant, review of the statistical methods used to arrive at this conclusion suggests that inadequate risk adjustment resulted in an erroneous conclusion.