da Silva, G., Bergmann, A., Thuler, L. (2019). Incidence and Risk Factors for Bone Metastasis in Non-Small Cell Lung Cancer. Asian Pacific Journal of Cancer Prevention, 20(1), 45-51. doi: 10.31557/APJCP.2019.20.1.45
Gustavo Telles da Silva; Anke Bergmann; Luiz Claudio Santos Thuler. "Incidence and Risk Factors for Bone Metastasis in Non-Small Cell Lung Cancer". Asian Pacific Journal of Cancer Prevention, 20, 1, 2019, 45-51. doi: 10.31557/APJCP.2019.20.1.45
da Silva, G., Bergmann, A., Thuler, L. (2019). 'Incidence and Risk Factors for Bone Metastasis in Non-Small Cell Lung Cancer', Asian Pacific Journal of Cancer Prevention, 20(1), pp. 45-51. doi: 10.31557/APJCP.2019.20.1.45
da Silva, G., Bergmann, A., Thuler, L. Incidence and Risk Factors for Bone Metastasis in Non-Small Cell Lung Cancer. Asian Pacific Journal of Cancer Prevention, 2019; 20(1): 45-51. doi: 10.31557/APJCP.2019.20.1.45
Incidence and Risk Factors for Bone Metastasis in Non-Small Cell Lung Cancer
National Cancer Institute and Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil.
Receive Date: 21 October 2017,
Revise Date: 31 July 2018,
Accept Date: 22 December 2018
Abstract
Background: Bone is a frequent site of metastasis from various primary cancers including with Non-Small Cell Lung Cancer. The aim of this study was to investigate the incidence and risk factors for Bone Metastasis in patients with Non-Small Cell Lung Cancer. Methodology: A cohort study was carried out in patients diagnosed with Non-Small Cell Lung Cancer between 2006 and 2014 in a single cancer centre. A descriptive analysis of the population was compiled based on mean ± standard deviation (SD) for continuous variables and percentage (%) for categorical variables. Univariate and multivariate Cox proportional hazards regression analyses were carried out to quantify the relationship between independent variables and the outcome variable (Bone Metastasis). Results: During the study period 1025 patients were diagnosed with Non-Small Cell Lung Cancer. Bone Metastasis was detected in 136 patients (13.2%) with a mean interval between Non-Small Cell Lung Cancer diagnosis and Bone Metastasis of 8.07 months (95% CI: 7.68 8.45). Multivariate analysis revealed that younger age (HR 0.97; 95%CI, 0.95–0.99; p=0.002), adenocarcinoma (HR 1.51; 95%CI, 1.06–2.15; p=0.021) and treatment with chemotherapy, radiotherapy or chemotherapy combined with radiotherapy (HR 3.73; 95%CI, 2.30–6.05; p<0.001) were associated with the occurrence of Bone Metastasis. Conclusion: The incidence of Bone Metastasis was 13.2%. Younger age, histological subtype adenocarcinoma and treatment with chemotherapy, radiotherapy or chemotherapy combined with radiotherapy are independent risk factors for Bone Metastasis.
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