Obese pre-menopausal women, increased risk of colorectal cancer

Terry the United States and other studies have shown that, in pre-menopausal women, obese women increased risk of colorectal cancer occurred 1 times, in post-menopausal women do not have such a relationship. Weight control may reduce the incidence of colorectal carcinoma.

     Many large studies have shown that obesity is not a women's risk factors for colorectal cancer occurred, but not with men who have colorectal cancer related. Age stratification study confirmed that in pre-menopausal women, obesity and the occurrence of colorectal cancer-related and limited to pre-menopausal women. There is no study on postmenopausal women to investigate.

     Terry, etc. 40 to 59 year-old female in the assessment of the relationship between obesity and colorectal cancer. Object of study for the Canadian National Breast Screening Study (NBSS) in 89835 women. On average 10.6 years of follow-up period, a total of 527 cases of women diagnosed with colorectal cancer. (Gut 2002,51: 191)

     The researchers found that, began to study at the time of pre-menopausal women, obesity (body mass index ≥ 30 kg/m2) so that the incidence of colorectal cancer increased risk of 1-fold (HR of 1.88,95% CI 1.24 ~ 2.86). In post-menopausal women do not have such a relationship.