A narrative review of lung cancer screening in underserved populations

Abstract

Lung cancer screening with low-dose computed tomography (LDCT) is an effective approach for the early detection of lung cancer and the reduction of lung cancer specific mortality in high risk individuals. Despite recommendations for LDCT screening by the National Comprehensive Cancer Network (NCCN) and the United States Preventive Services Task Force, the utilization of LDCT screening in clinical practice has been low. Moreover, significant disparities in the use of LDCT have been described in underserved populations, including African American or black patients, rural patients with limited access to LDCT screening facilities, and other vulnerable patient groups with known risk factors for developing lung cancer. Several patient, provider, and healthcare systems level approaches have been proposed to mitigate lung cancer screening disparities. Such approaches include raising awareness of LDCT screening benefits and the evidence in support of LDCT screening among healthcare providers, educating patients on LDCT screening and optimizing shared decision-making approaches between patients and providers, and expanding patient access to LDCT screening through free and mobile lung cancer screening programs. As lung cancer screening utilization continues to expand in clinical practice, it will be critical to continue investigating the trends, causes, and outcomes of LDCT screening disparities in underserved populations.

Keywords: Lung cancer screening; disparities; low-dose computed tomography (LDCT); underserved.

Figure 1

Flow chart outlining patient, provider, and system-level approaches to improve LDCT screening rates in underserved populations. LDCT, low-dose computed tomography.