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Hospital case-volume and mortality after lung cancer surgery: A population-based retrospective cohort study

Cited 1 time in Web of Science Cited 1 time in Scopus
Authors

Kim, Bo Rim; Sohn, Jin Young; Jang, Eun Jin; Jo, Junwoo; Lee, Hannah; Ryu, Ho Geol

Issue Date
2022-07
Publisher
Elsevier BV
Citation
Lung Cancer, Vol.169, pp.61-66
Abstract
Objectives: Recent advances in lung cancer treatment warrants reassessment of the volume-outcome association in lung cancer surgery. This study reassessed the relationship between surgical case-volume and both in-hospital and long-term mortality after lung cancer surgery using a current database to reflect recent advances. Materials and methods: Using the database of the National Health Insurance Service in Korea, data of all adult patients who underwent lung cancer surgery in Korea between 2005 and 2019 were obtained. Hospitals were categorized by the annual number of lung cancer surgeries. Risk-adjusted in-hospital and 1, 3, 5-year mortality after surgery were assessed. Results: A total of 84,194 lung cancer surgeries were performed in 163 centers during the study period. High volume centers were defined as > 200 cases/year, medium-volume centers as 60-200 cases/year, and low volume centers as < 60 cases/year. After adjustment, in-hospital mortality was significantly lower in high volume centers (1.03%) compared to medium-volume centers (2.06%, adjusted odds ratio [OR], 1.43; 95% confidence interval [CI], 1.23-1.65; P < 0.001), and low-volume centers (3.08%, OR, 1.32; 95% CI, 1.16-1.51; P < 0.001). Long-term mortality was also significantly lower in high-volume centers compared to the other groups. Conclusion: High-volume centers showed lower in-hospital and long-term mortality compared to centers with less case-volume.
ISSN
0169-5002
URI
https://hdl.handle.net/10371/184610
DOI
https://doi.org/10.1016/j.lungcan.2022.05.016
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