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Socioeconomic differences and lung cancer survival in Germany: Investigation based on population-based clinical cancer registration.
Lung Cancer 142, 1-8 (2020)
Objectives: Studies from several countries reported socioeconomic inequalities in lung cancer survival. Hypothesized reasons are differences in cancer care or tumor characteristics. We investigated associations of small-area deprivation and lung cancer survival in Germany and the possible impact of differences in patient, tumor or treatment factors.Materials and Methods: Patients registered with a primary tumor of the lung between 2000-2015 in three German population-based clinical cancer registries were included. Area-based socioeconomic deprivation on municipality level was measured with the categorized German Index of Multiple Deprivation. Association of deprivation with overall survival was investigated with Cox regression models.Results: Overall, 22,905 patients were included. Five-year overall survival from the least to the most deprived quintile were 17.2%, 15.9%, 16.7%, 15.7%, and 14.4%. After adjustment for patient and tumor factors, the most deprived group had a lower survival compared to the least deprived group (Hazard Ratio (HR) 1.06, 95% confidence interval (CI) 1.01-1.11). Subgroup analyses revealed lower survival in the most deprived compared to the least deprived quintile in patients with stage I-III [HR: 1.14, 95% CI: 1.06-1.22]. The association persisted when restricting to patients receiving surgery but was attenuated for subgroups receiving either chemotherapy or radiotherapy.Conclusion: Our results indicate differences in lung cancer survival according to area deprivation in Germany, which were more pronounced in patients with I-III stage cancer. Future research should address in more detail the underlying reasons for the observed inequalities and possible approaches to overcome them.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Area-based Socioeconomic Deprivation ; Survival ; Lung Cancer ; Stage At Diagnosis ; Treatment ; Germany; Prognostic-factor; Stage; Inequalities; Deprivation; Mortality; Comorbidity; Disparities; Predictors; Smoking; Nsclc
ISSN (print) / ISBN
0169-5002
e-ISSN
1872-8332
Journal
Lung Cancer
Quellenangaben
Volume: 142,
Pages: 1-8
Publisher
Elsevier
Publishing Place
Amsterdam
Non-patent literature
Publications
Reviewing status
Peer reviewed