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Racial and ethnic differences in all-cause mortality among Hispanics diagnosed with follicular lymphoma and chronic lymphocytic leukemia in the Bronx, NY

Abstract

Purpose

Research suggests better survival among Hispanics with diffuse large B-cell lymphoma (DLBCL) compared to non-Hispanic Whites (NHW); however, less is known about racial/ethnic survival differences in follicular lymphoma (FL) and chronic lymphocytic leukemia (CLL).

Methods

We identified incident FL and CLL cases diagnosed between 2005 and 2016 at Montefiore Medical Center in the Bronx, NY. Cox proportional hazards regression assessed the association between race/ethnicity and all-cause mortality among FL and CLL separately.

Results

Of the 201 FL patients, 39.3% were NHW, 19.4% non-Hispanic Black (NHB), and 41.3% Hispanic, with a similar distribution among CLL patients. After adjusting for International Prognostic Index factors, sex, and chemotherapy, Hispanics with FL had lower all-cause mortality compared to NHWs (HR = 0.22; 95% CI 0.08–0.63), similar to prior DLBCL findings. All-cause mortality did not differ between NHBs and NHWs for FL or by any race/ethnicity for CLL.

Conclusion

In our diverse, urban population, we found that Hispanic diagnosed with FL had lower all-cause mortality compared to NHWs. We found no significant difference in all-cause mortality between Hispanics and NHWs diagnosed with CLL. Our study adds to the growing literature on racial and ethnic differences in survival among Hispanics with hematologic malignancies.

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Fig. 1

Data availability

Available upon reasonable request.

Code availability

N/A.

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Funding

This work was supported by a grant from the National Institutes of Health/National Center for Advancing Translational Science (NCATS) Einstein-Montefiore CTSA (Grant Number UL1TR001073).

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Authors

Contributions

Research study design, data analysis, and interpretation were performed by DB and HDH. DB, MF, IM, TR, and HDH contributed to manuscript writing. DB, MF, IM, TR, and HDH have reviewed and approved the final manuscript.

Corresponding author

Correspondence to Deanna Blansky.

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The authors declare no conflicts of interest.

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Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This study was approved by the Institutional Review Board at Albert Einstein College of Medicine (Number 2018-9853).

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Blansky, D., Fazzari, M., Mantzaris, I. et al. Racial and ethnic differences in all-cause mortality among Hispanics diagnosed with follicular lymphoma and chronic lymphocytic leukemia in the Bronx, NY. Cancer Causes Control (2021). https://doi.org/10.1007/s10552-021-01507-0

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Keywords

  • Follicular lymphoma
  • Chronic lymphocytic leukemia
  • Non-Hodgkin lymphoma
  • Race/ethnicity
  • Clinical research