Women who are overweight or obese have the risk of developing colorectal cancer as a normal body mass index (BMI), by Washington University School of Medicine in St Louis.
The study included data from 85,256 women aged 25 to 44 in the Nurses' Health Study II, which began in 1989. The researchers have collected detailed information on body weight throughout the life course, family and endoscopy histories baseline and every two to four years. Up to 2011, doctors diagnosed 114 colorectal cancer cases under the age of 50.
Compared with women with the lowest BMIs, 18.5-22.9kg per sq m, with the highest BMIs, greater than 30, had almost twice the risk
"Our findings really highlight the importance of maintaining a healthy weight, beginning in early adulthood for the prevention of early-onset colorectal cancer," said co-senior author and cancer epidemiologist Yin Cao assistant professor of surgery in the Division of Public Health Sciences at Washington University.
"We hypothesized that the obesity epidemic may be partially responsible for this national and global concern in early-onset colorectal cancer rates, but we were surprised by the strength of
The research that this thesis is an association study, which does not establish rly-onset colorectal cancer.
In the United States, the diagnosis of colorectal cancer is more likely to occur.
The disease has been steadily diminished since 1
The American Cancer Society has recently dropped the recommended age at which most people should undergo a first screening colonoscopy.