Health

Studies Link Obesity and Cancer

A healthy diet and exercise can help prevent obesity, a regimen that's being followed by Northeast resident Sharon Carter, who knows that, according to a new study, obesity increases the risk of certain cancers in black and Latino women. (Courtesy of ilaacp.org)
A healthy diet and exercise can help prevent obesity, a regimen that’s being followed by Northeast resident Sharon Carter, who knows that, according to a new study, obesity increases the risk of certain cancers in black and Latino women. (Courtesy of ilaacp.org)
by Stacy M. Brown
Special to the NNPA from The Washington Informer

Sharon Carter does everything that she can to lose weight.

After years of overindulging, she said she eats three healthy meals per day, her snacks are healthy and they are few and far in between.

Carter regularly walks and sometimes jogs for exercise, and she also encourages Nichelle, her 15-year-old daughter, to eat only in moderation and to join in her daily regimen.

“Exercise, watching my diet, watching my daughter’s diet is important because we do have some [obese] individuals in my family,” said Carter, 48, of Northeast. “We also know that too much weight gain often leads to other problems.”

Two new studies presented on Nov. 3 at the American Institute for Cancer Research’s annual meeting in Northwest revealed that obesity increases the risk of certain types of breast cancer in postmenopausal black and Latino women.

One of the studies included research on 3,285 Latino women, and it indicated that being overweight or obese increased the risk for estrogen receptor-negative and progesterone receptor-positive breast tumors among postmenopausal women.

“We’ve known this for a long time for white women, but now we are seeing this also in Latino women,” said the study’s author, Dr. Esther John, a senior research scientist at the Cancer Prevention Institute of California.

A separate study, which included research on more than 15,000 black women, indicated that being overweight or obese increased postmenopausal women’s risk of estrogen receptor-positive breast cancer by 31 percent.

The researchers found the risk to be nearly double among black women who at one time could be classified as lean young adults but later gained weight during adulthood.

“We know that breast cancer has several subtypes, and there is growing evidence that these subtypes have different risk factors,” said Dr. Elisa Bandera of the Rutgers Cancer Institute of New Jersey, who authored the second study.

“The distribution of these subtypes and risk factors are different for African-Americans and Latinos compared to white women,” she said.

Bandera said one study isn’t enough.

“We need to know more about what African-American women can do to prevent and survive breast cancers of all types, which are often aggressive and deadly,” she said.

The studies are not unlike those conducted two years ago by the nonprofit think tank Rand Corporation in Alexandria, Virginia, where officials said disparities in cancer between black and white residents of the District are wider than those nationwide.

Rand officials found that African-Americans are more likely to be diagnosed with and die from cancer than their white peers.

While the overall cancer mortality rate proved to be about 21 percent higher among blacks than whites nationally, the mortality rate in Washington is 90 percent higher among blacks than whites.

“We know from available data that, once diagnosed with cancer, black patients in the District are more likely to begin treatment at a later stage compared to white patients,” said Rebecca Anhang Price, an associate policy researcher at Rand, who also conducted the group’s study. “But richer data on the trajectory of care among cancer patients in the District are lacking,” she said.

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