期刊
INTERNATIONAL JOURNAL OF GENERAL MEDICINE
卷 14, 期 -, 页码 10131-10139出版社
DOVE MEDICAL PRESS LTD
DOI: 10.2147/IJGM.S342009
关键词
small cell lung cancer; SCLC; brain metastasis; BM; survival; risk factor
资金
- National Natural Science Foundation of China [81670123, 81802980]
This study aimed to analyze the risk and prognostic factors for brain metastasis in patients with small cell lung cancer. Independent risk factors for brain metastasis were identified, and multidisciplinary therapies were suggested to provide clinical benefits.
Purpose: To characterize the risk factors for brain metastasis (BM) at presentation and analyze the prognostic factors for patients with small cell lung cancer (SCLC). Patients and Methods: Patients were recruited from the SEER database between 2010 and 2016. They were divided into two groups according to BM status. The incidence trends of SCLC and its BM were analyzed by joinpoint software. The risk factors for BM in SCLC were identified by binary logistic regression models. The prognostic factors for SCLC patients with BM were identified by Cox proportional hazard models. Results: The incidence of SCLC and its BM significantly decreased after 2010. Totally 11,093 patients were collected, including 1717 (15.5%) patients with BM and 9376 (84.5%) patients without BM. In multivariate logistic regression analysis, age, male and higher T stage were independent risk factors for BM in SCLC patients at presentation. SCLC patients with BM showed inferior survival to those without BM. In multivariate Cox regression analysis, increasing age, large tumor size, and higher N stage were risk factors for poor prognosis, while other race, surgery, adjuvant radiotherapy, and chemotherapy were protective factors for SCLC patients with BM. A nomogram was developed for prognosis evaluation of such patients. Conclusion: Age, male and higher T stage were risk factors for BM in SCLC patients at presentation. Increasing age, large tumor size, and advanced N stage may predict poor survival for SCLC patients with BM. Multidisciplinary therapies may provide clinical benefits. This study will help identify patients with higher BM risk and hopefully improve their clinical outcome.
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