Pancreatic Cancer Related Health Disparities: A Commentary

Abstract

We summarize the risk factors that may significantly contribute to racial disparities in pancreatic cancer, which is now the third leading cause of cancer deaths and projected to be second around 2030 in 12 years. For decades, the incidence rate of pancreatic cancer among Blacks has been 30% to 70% higher than other racial groups in the United States and the 5-year survival rate is approximately 5%. Diabetes and obesity have been identified as potentially predisposing factors to pancreatic cancer and both are more common among Blacks. Smoking continues to be one of the most important risk factors for pancreatic cancer and smoking rates are higher among Blacks compared to other racial groups. The overall risk of pancreatic cancer due to changes in DNA is thought to be the same for most racial groups; however, DNA methylation levels have been observed to be significantly different between Blacks and Whites. This finding may underlie the racial disparities in pancreatic cancer. Identification and prevention of these factors may be effective strategies to reduce the high incidence and mortality rates for pancreatic cancer among Blacks.

Keywords: pancreatic cancer; racial disparities.

Figure 1

Pancreatic cancer statistics by race. (A) Age-Standardized Delay-Adjusted Incidence Rates. (B) Age-Standardized U.S. Mortality Rates. (C) 5-year Relative Survival by Year. All data for Blacks and Whites include Hispanic ethnicity.