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Investigating the Obesity Paradox in Colorectal Cancer: An Analysis of Prospectively Collected Data in a Diverse Cohort.
Kumar, Shria; Blandon, Catherine; Sikorskii, Alla; Kaplan, David E; Mehta, Shivan J; Su, Grace L; Goldberg, David S; Crane, Tracy E.
Afiliación
  • Kumar S; Division of Digestive Health and Liver Diseases, Department of Medicine, Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
  • Blandon C; Sylvester Comprehensive Cancer Center, Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
  • Sikorskii A; Division of Digestive Health and Liver Diseases, Department of Medicine, Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
  • Kaplan DE; Department of Psychiatry, Michigan State University, East Lansing, MI 48824, USA.
  • Mehta SJ; Division of Gastroenterology and Hepatology, University of Pennsylvania, Philadelphia, PA 19104, USA.
  • Su GL; Gastroenterology Section, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA 19104, USA.
  • Goldberg DS; Division of Gastroenterology and Hepatology, University of Pennsylvania, Philadelphia, PA 19104, USA.
  • Crane TE; Division of Gastroenterology, University of Michigan, Ann Arbor, MI 48109, USA.
Cancers (Basel) ; 16(17)2024 Aug 24.
Article en En | MEDLINE | ID: mdl-39272808
ABSTRACT

BACKGROUND:

Prior studies are inconclusive regarding the effect of obesity on mortality in persons with colorectal cancer (CRC). We sought to determine the association of pre-diagnosis body mass index (BMI) trajectories on mortality after CRC diagnosis.

METHODS:

Utilizing the Multiethnic Cohort, we included adults aged 18-75 between 1 January 1993 and 1 January 2019 with a diagnosis of CRC and at least three available BMIs. The primary exposure, BMI, was subjected to group-based trajectory modeling (GBTM). We evaluated all-cause and CRC-specific mortality, using Cox proportional hazard (PH) models.

RESULTS:

Of 924 persons, the median age was 60 years, and 54% were female. There was no statistically significant association between pre-cancer BMI trajectory and either all-cause or cancer-specific mortality. In competing risk analysis, the risk of CRC-specific mortality was higher for African Americans (HR = 1.56, 95% CI [1.00-2.43], p = 0.048) and smokers (HR = 1.59, 95% CI [1.10-2.32], p = 0.015). Risk of all-cause mortality was higher for Hawaiian persons (HR = 2.85, 95% CI [1.31-6.21], p = 0.009) and persons with diabetes (HR = 1.83, 95% CI [1.08-3.10], p = 0.026).

CONCLUSIONS:

Pre-diagnosis BMI trajectories were not associated with mortality after CRC diagnosis, whereas race/ethnicity, diabetes, and smoking were associated with an increased risk of death. Our findings suggest the obesity paradox alone does not account for mortality after CRC diagnosis.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Cancers (Basel) Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Suiza

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Cancers (Basel) Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Suiza