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Variation in primary site resection practices for advanced colon cancer: a study using the National Cancer Data Base
Mark A Healy1, Jason C Pradarelli2, Robert W Krell1
1Department of Surgery, University of Michigan Health System, Center for Healthcare Outcomes and Policy, 2800 Plymouth Road, Building 16, 016-100N28, Ann Arbor, MI 48109, USA.
Background:
Treatment of metastatic colon cancer may be driven as much by practice patterns as by features of disease. To optimize management, there is a need to better understand what is determining primary site resection use.
Methods:
We evaluated all patients with stage IV cancers in the National Cancer Data Base from 2002 to 2012 (50,791 patients, 1,230 hospitals). We first identified patient characteristics associated with primary tumor resection. Then, we assessed nationwide variation in hospital resection rates.
Results:
Overall, 27,387 (53.9%) patients underwent primary site resection. Factors associated with resection included younger age, having less than 2 major comorbidities, and white race (P < .001). Nationwide, hospital-adjusted primary tumor resection rates ranged from 26.0% to 87.8% with broad differences across geographical areas and hospital accreditation types.
Conclusions:
There is statistically significant variation in hospital rates of primary site resection. This demonstrates inconsistent adherence to guidelines in the presence of conflicting evidence regarding resection benefit.
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