Department of Radiology
University of Wisconsin School of Medicine and Public Health

Poulson 2022

 

Year: 2022

Title: Redlining, structural racism, and lung cancer screening disparities

Country: United States

Age: Adult Only

Sex: All Sexes

Population: Black

Care Setting: Outpatient Ambulatory and Primary Care

Clinical Setting: Lung Cancer Screening

Data Level: Single Institution

Data Type: EHR

Data Source: Local data

Conclusion: Disparities In All Minority Groups

Health OutComes Reported: No

Mitigation: No

Free Text Conclusion: Black patients were less likely to be screened for lung cancer in redlined areas.

Abstract: OBJECTIVE: The objective of this study was to understand the effect of historical redlining (preclusion from home loans and wealth-building for Black Americans) and its downstream factors on the completion of lung cancer screening in Boston. METHODS: Patients within our institution were identified as eligible for lung cancer screening on the basis of the United State Preventive Service Task Force criteria and patient charts were reviewed to determine if patients completed low-dose computed tomography screening. Individual addresses were geocoded and overlayed with original 1930 Home Owner Loan Corporation redlining vector files. Structural equation models were used to estimate the odds of screening for Black and White patients, interacted with sex, in redlined and nonredlined areas. RESULTS: Black patients had a 44% lower odds of screening compared with White (odds ratio [OR], 0.66; 95% CI, 0.52-0.85). With race as a mediator, Black patients in redlined areas were 61% less likely to undergo screening than White patients (OR, 0.39; 95% CI, 0.24-0.64). Similarly, in redlined areas Black women had 61% (OR, 0.39; 95% CI, 0.21-0.73) and Black men 47% (OR, 0.53; 95% CI, 0.29-0.98) lower odds of screening compared with White men in redlined areas. CONCLUSIONS: Despite higher rates of lung cancer screening in redlined areas, Black race mediated worse screening rates in these areas, suggesting racist structural factors contributing to the disparities in lung cancer screening completion among Black and White patients. Furthermore, these disparities were more apparent in Black women, suggesting that racial and gender intersectional discrimination are important in lung cancer screening completion.