Author Affiliations: Departments of Surgery (Ms Kucirka), Epidemiology (Dr Lessler), and Surgery (Dr Segev), Johns Hopkins University School of Medicine, Baltimore, Maryland (firstname.lastname@example.org).
In Reply: We were primarily interested in the effects of black race rather than ethnicity, so we did not remove Hispanic patients from our original analysis. However, the inference from our study that younger black patients have a higher risk of death while receiving dialysis than younger white patients holds true when stratifying by Hispanic ethnicity. For example, 27.3% of non-Hispanic black patients aged 18 to 30 years died while receiving dialysis compared with 15.7% of non-Hispanic white patients (adjusted subhazard ratio [aSHR], 1.77; 95% CI, 1.67-1.87), and 20.1% of Hispanic black patients died vs 10.9% of Hispanic white patients (aSHR, 1.49; 95% CI, 1.10-2.01). Thus, the inclusion of patients of Hispanic ethnicity in our study does not explain the decreased survival of younger black patients.
Kucirka LM, Lessler J, Segev DL. Race, Age, and Mortality Among Patients Undergoing Dialysis—Reply. JAMA. 2011;306(20):2215-2216. doi:10.1001/jama.2011.1716