Obesity pandemic shifting cancer to younger people

Obesity pandemic shifting cancer to younger people

PanARMENIAN.Net - A new study looking at incidence of disease data nationwide from 2000 to 2016 found a shift in obesity-associated cancers (OACs) to younger individuals. Typically, these cancers are diagnosed at higher rates among people older than 65. The most notable findings pertain to increases in these OACs among non-Hispanic Black and Hispanic women and men for whom certain cancers increased by 200-400%, Science Daily says.

The study, "Changes in Age Distribution of Obesity-Associated Cancers," was recently published in JAMA Network Open. It was conducted by a team at Case Western Reserve University School of Medicine and the Case Comprehensive Cancer Center. The team includes Siran Koroukian, Weichuan Dong, and Nathan Berger. Koroukian and Berger are faculty with the School of Medicine and members of the Case Comprehensive Cancer Center. Berger is also an oncologist at Seidman Cancer Center at University Hospitals Cleveland Medical Center.

Data were used from more than six million incident cancer cases from the Surveillance Epidemiology and End Results (SEER) database, recognized as an authoritative source for U.S. cancer statistics. The SEER is administered by National Institute of Health's National Cancer Institute.

"We were struck by the shift in obesity-associated cancers to people in the 20 to 49 age group, but most notably to those in the 50 to 64 age range," said Koroukian. "Keep in mind that the population aged 50 to 64 increased in number by nearly 52% in that time frame, so the absolute numbers of people affected by these changes are substantial. It also is notable that the percent increase of obesity-associated cancer cases was highest among non-Hispanic Black and Hispanic women and men."

Researchers point out that many of the people 50 to 64 years of age with cancers diagnosed in the years from 2000 to 2016 are now cancer survivors, and many will be part of incoming Medicare cohorts or are now covered by Medicare. It also is likely that these individuals will be covered by Medicaid, given the financial burden of cancer care. Thus, obesity-associated cancers have both a public health and public finance impact.

"We all know that public health education efforts are important to address the impact of obesity on individuals' health and quality of life," said Berger. "This analysis of the SEER data proves the point at a population level, with dramatic findings for the Black and Hispanic communities. Public health practitioners and officials are wise to continue and even increase efforts to inform people about the adverse consequences of obesity, and support individuals and communities in changing behaviors that contribute to obesity."

Obesity-associated cancers included in this study include cancers of the colon and rectum (combined as colorectal), female breast, uterus, ovary, gallbladder and other biliary organs, esophagus, stomach, liver and intrahepatic bile duct, pancreas, kidney and renal pelvis, thyroid, and multiple myeloma. Cancers not included in the OAC grouping (including lung cancer, melanoma, and brain cancers) are referred to as non-OACs.

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