Quality Measures in Clinical Stage I Non-Small Cell Lung Cancer: Improved Performance Is Associated With Improved Survival

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Abstract

Background National organizations have recommended quality measures for operations in early-stage non-small cell lung cancer (NSCLC). The outcomes of adherence to these guidelines are unknown. Methods Information about patients who underwent an operation for clinical stage I NSCLC was abstracted from the National Cancer Database. After reviewing current guidelines, the following quality measures were selected: anatomic resection, operation within 8 weeks of diagnosis, achievement of negative surgical margins, and sampling of 10 or more lymph nodes. Multivariate models identified variables independently associated with receiving quality measures and a Cox model created to evaluate overall survival. Results Between 2004 and 2013, 133,026 of 133,366 (99.7%), 126,598 of 133,366 (94.9%), 91,472 of 133,366 (68.6%), and 30,041 of 133,366 (22.5%) patients met one, two, three, or four measures. Income of at least $38,000/year (odds ratio [OR] 1.20, 95% CI: 1.15 to 1.24), insurance type (private insurance: OR 1.22, 95% CI: 1.09 to 1.36; Medicare: OR 1.16, 95% CI:1.04 to 1.30), centers with at least 38 cases/year (OR 1.18, 95% CI: 1.14 to 1.22), academic institutions (OR 1.31, 95% CI: 1.27 to 1.35), and clinical stage IB patients (OR 1.50, 95% CI: 1.40 to 1.60) were more likely to meet all four measures; whereas increasing age (OR 0.99, 95% CI: 0.99 to 0.99), women (OR 0.93, 95% CI: 0.91 to 0.96), non-Caucasian race (OR 0.83, 95% CI: 0.79 to 0.87), and increasing Charlson/Deyo comorbidity score (1: OR 0.90, 95% CI: 0.87 to 0.93; ≥2: OR 0.82, 95% CI: 0.79 to 0.86) were associated with lower likelihood. Pathologic upstaging (hazard ratio [HR] 1.84, 95% CI: 1.78 to 1.89) and meeting all four measures (HR 0.39, 95% CI: 0.31 to 0.48) were most powerfully associated with overall survival. Conclusions National adherence to quality measures in stage I NSCLC resection is suboptimal. Guideline compliance is strongly associated with survival, and vigorous efforts should be instituted by national societies to improve adherence.

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Samson, P., Crabtree, T., Broderick, S., Kreisel, D., Krupnick, A. S., Patterson, G. A., … Puri, V. (2017). Quality Measures in Clinical Stage I Non-Small Cell Lung Cancer: Improved Performance Is Associated With Improved Survival. In Annals of Thoracic Surgery (Vol. 103, pp. 303–311). Elsevier USA. https://doi.org/10.1016/j.athoracsur.2016.07.003

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