Abstract
The prognostic influence of socioeconomic status (SES) on the survival of diffuse large B-cell lymphoma (DLBCL) patients remains controversial. This observational study examines the potential impact of regional SES inequalities on overall survival (OS) among DLBCL patients in Germany. We analyzed data from the German nationwide population-based dataset spanning 2004-2019 sourced from the German Center for Cancer Registry Data (n = 49,465). The primary objective was to assess the 5-year OS among patients with low SES compared to those living in middle and high SES areas. SES was grouped according to quintiles of the German Index of Socioeconomic Deprivation, which summarized nine indicators covering aspects of regional education, employment, and income. DLBCL patients in low SES areas had significantly impaired 5-year OS compared to those in middle and high SES regions (59.2% vs. 61.8% vs. 64.1%, p < 0.0001). Yet, additionally accounting for regional premature mortality removed the impact of SES on survival (Hazard Ratio 0.94, 95% CI 0.87–1.01). Our findings indicate that the prognostic impact of socioeconomic deprivation on long-term survival is not due to variations in diagnosis and treatment of DLBCL itself but rather a higher comorbidity burden.
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