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Racial/Ethnic Disparities in End-of-Life Care Among Patients With Lung Cancer


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Siddharth Karanth, MBBS, MPH, DrPH

Siddharth Karanth, MBBS, MPH, DrPH

Significant disparities in the quality of end-of-life lung cancer care were found among racial/ethnic minorities, with higher odds of experiencing potentially preventable medical encounters during end of life as compared with non-Hispanic whites. These findings were published by Siddharth Karanth, MBBS, MPH, DrPH, and colleagues in the Journal of Thoracic Oncology

Lung cancer mortality and end-of-life cancer care burden is higher among minorities due to their higher lung cancer risk, diagnosis at later stages, and higher odds of receiving inappropriate treatment strategies. In addition, minorities often receive poor quality and more aggressive care near death, in the form of care being administered in emergency rooms (ERs), intensive care units (ICUs), and inpatient facilities. Minorities are also less likely to receive hospice care during end of life. 

A group of investigators led by researchers from The University of Texas Health Science Center at Houston School of Public Health conducted a retrospective analysis to examine racial/ethnic disparities in the quality of lung cancer end-of-life care. The study used Surveillance, Epidemiology, and End Result (SEER) data containing newly diagnosed lung cancer patients between 1992 and 2011 linked to Medicare claims from 1991 to 2013. Patients 66 years and older who were diagnosed with stages I to IV lung cancer, and who died on or before December 31, 2013, were included in the study. Patients were divided and analyzed as two separate cohorts, non–small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). 

Poor quality of care was measured using three themes: (1) potentially preventable medical encounters (such as ER, ICU, and inpatient stays, and deaths in acute care settings); (2) delayed hospice referral; and (3) aggressive chemotherapy during end of life. Logistic regression analyses were performed to estimate racial/ethnic disparities in the adjusted odds of receiving poor quality end-of-life care.

Study Findings

The study identified 154,498 NSCLC patients and 27,834 SCLC patients who died on or before December 31, 2013. A total of 84% of the NSCLC and 88% of the SCLC patients were non-Hispanic white. Among patients surviving less than 1 month after diagnosis, statistically significant racial/ethnic differences in poor-quality end-of-life care were minimal. However, among patients surviving 1 to 7 months after diagnosis, non-Hispanic blacks and Hispanics had a higher proportion of preventable medical encounters in the last month of life as compared with non-Hispanic whites. Hospice care initiation during the last 3 days of life was similar among all races/ethnicities surviving 1 to 7 months, with marginally lower rates of delayed hospice referral among non-Hispanic blacks with NSCLC. 

Aggressive chemotherapy in the last month of life was less common among non-Hispanic blacks than in non-Hispanic whites; however, a higher proportion of non-Hispanic blacks and Hispanics received overall aggressive care near end of life. The racial/ethnic differences in quality of end-of-life care for patients surviving more than 7 months after diagnosis were similar to the differences in patients surviving 1 to 7 months.

The authors commented, “Our findings may indicate continued lack of access and care disparity among the minorities during the earlier phases of cancer care, which might precipitate potentially preventable utilizations during end-of-life. These findings indicate the need to examine the access of minority populations to appropriately trained providers during all phases of cancer care and their geographic access to hospice care. In addition, identifying patient-level reasons for racial/ethnic disparities will help develop educational and patient navigational interventions to reduce access barriers and facilitate informed patient-level decision-making during end of life.” ■

Karanth S, et al: J Thorac Oncol. May 10, 2018 (early release online).


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