Racial/ethnic disparities in weight or BMI change in adulthood and pancreatic cancer incidence: The multiethnic cohort. (16th May 2021)

• Record Type: Journal Article
• Authors: Farias, Albert J.; Streicher, Samantha A.; Stram, Daniel O.; Wang, Songren; Pandol, Stephen J.; Le Marchand, Loïic; Setiawan, Veronica W.
• Is Part Of: Cancer medicine. Volume 10:Number 12(2021)
• Page Start: 4097
• Page End: 4106
• Publication Date: 2021-05-16
• Subjects: 616.994005
• DOI: 10.1002/cam4.3958
• Languages: English
• ISSNs: 2045-7634

Abstract

Abstract: Introduction: Compared to non‐Hispanic Whites, Japanese Americans, Native Hawaiians, and African Americans have higher incidences of pancreatic cancer (PCa) that are not entirely explained by rates of obesity but may be explained by weight changes throughout adulthood. Methods: The multiethnic cohort is a population‐based prospective cohort study that has followed 155, 308 participants since its establishment between 1993 and 1996. A total of 1, 328 incident cases with invasive PCa were identified through 2015. We conducted separate multivariable Cox proportional hazards models for self‐reported weight‐change and BMI‐change (age 21 to cohort entry) to determine the association with PCa risk, adjusting for potential confounders including weight or BMI at age 21. Results: The mean age at cohort entry was 59.3 years (SD 8.9). An increased risk of PCa was associated with: 1) weight (HR per10 lbs = 1.06; 95% CI = 1.03–1.09) or BMI (HR per kg/m 2 = 1.04; 95% CI = 1.02–1.05) at age 21; and 2) weight (HR per 10 lbs = 1.03; 95% CI = 1.01–1.05) or BMI (HR = 1.02; 95% CI = 1.00–1.03) at cohort entry. We found increased risk of PCa between weight (HR per 10 lbs = 1.03; 95% CI = 1.01–1.05) and BMI (HR per 5 kg/m 2 = 1.08; 95% CI = 1.01–1.15) change from age 21 to baseline. There were significant interactions between race/ethnicity and weight ( p = 0.008) or BMI ( p = 0.03) at baseline, and weight ( p = 0.02) or BMI ( p = 0.02) change. Weight and BMI change through adulthood significantly increased the risk of PCa for Japanese Americans and Latinos, but not for African American, White, or Hawaiian participants. Conclusion: Our findings indicate that weight or BMI gain has a significant and independent impact on PCa risk, specifically among Latinos and Japanese Americans. Abstract : In a large multiethnic prospective cohort, we found that weight and BMI change through adulthood was associated with an increased risk of pancreatic cancer. Weight or BMI gain is an independent risk factor for pancreatic cancer regardless of weight or BMI at age 21.