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Article

Does Delaying Time in Cancer Treatment Affect Mortality? A Retrospective Cohort Study of Korean Lung and Gastric Cancer Patients

by 1,†, 1,† and 2,*
1
Division of Cancer Control and Policy, National Cancer Control Institute, National Cancer Center, Goyang 10408, Korea
2
Department of Nursing, College of Nursing, The Catholic University of Korea, Seoul 06591, Korea
*
Author to whom correspondence should be addressed.
Denotes equal contribution.
Academic Editor: Paul Tchounwou
Int. J. Environ. Res. Public Health 2021, 18(7), 3462; https://doi.org/10.3390/ijerph18073462
Received: 8 February 2021 / Revised: 19 March 2021 / Accepted: 22 March 2021 / Published: 26 March 2021
(This article belongs to the Section Health Care Sciences & Services)
The aim of this study is to investigate the association between delays in surgical treatment and five- and one- year mortality in patients with lung or gastric cancer. The National Health Insurance claims data from 2006 to 2015 were used. The association between time to surgical treatment, in which the cut-off value was set at average time (30 or 50 days), and five year mortality was analyzed using the Cox proportional hazard model. Subgroup analysis was performed based on treatment type and location of medical institution. A total of 810 lung and 2659 gastric cancer patients were included, in which 74.8% of lung and 71.2% of gastric cancer patients received surgery within average. Compared to lung cancer patients who received treatment within 50 days, the five-year (HR 1.826, 95% CI 1.437–2.321) mortality of those who received treatment afterwards was higher. The findings were not significant for gastric cancer based on the after 30 days standard (HR: 1.003, 95% CI: 0.822–1.225). In lung cancer patients, time-to-treatment and mortality risk were significantly different depending on region. Delays in surgical treatment were associated with mortality in lung cancer patients. The findings imply the importance of monitoring and assuring timely treatment in lung cancer patients. View Full-Text
Keywords: time-to-treatment; lung cancer; cancer care; mortality; regional disparity time-to-treatment; lung cancer; cancer care; mortality; regional disparity
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MDPI and ACS Style

Han, K.-T.; Kim, W.; Kim, S. Does Delaying Time in Cancer Treatment Affect Mortality? A Retrospective Cohort Study of Korean Lung and Gastric Cancer Patients. Int. J. Environ. Res. Public Health 2021, 18, 3462. https://doi.org/10.3390/ijerph18073462

AMA Style

Han K-T, Kim W, Kim S. Does Delaying Time in Cancer Treatment Affect Mortality? A Retrospective Cohort Study of Korean Lung and Gastric Cancer Patients. International Journal of Environmental Research and Public Health. 2021; 18(7):3462. https://doi.org/10.3390/ijerph18073462

Chicago/Turabian Style

Han, Kyu-Tae, Woorim Kim, and Seungju Kim. 2021. "Does Delaying Time in Cancer Treatment Affect Mortality? A Retrospective Cohort Study of Korean Lung and Gastric Cancer Patients" International Journal of Environmental Research and Public Health 18, no. 7: 3462. https://doi.org/10.3390/ijerph18073462

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