-

N.B.: Different languages can express different contents  -  (Italiano  English)

 

Fetal growth and maternal risk of colorectal cancer (2015-06-26)

High birth weight has been associated with subsequent increased risk of breast cancer in the infant's mother, possibly related to maternal estrogen and growth factor pathways.
However, its association with maternal risk of colorectal cancer, the third most common cancer among women, is unknown.

Researchers conducted a national cohort study of 1,838,509 mothers who delivered 3,590,523 babies in Sweden in 1973-2008, followed up for colorectal cancer incidence through 2009.
There were 7,318 mothers diagnosed with colorectal cancer in 36.8 million person-years of follow-up.

After adjusting for maternal age, body mass index, diabetes, and other potential confounders, high fetal growth was associated with a subsequent increased risk of colorectal cancer in the mother.
Each 1,000 g increase in the infant's birth weight was associated with a 12% increase in the mother's subsequent risk of colorectal cancer.

Multiple gestation also was independently associated with increased maternal risk of colorectal cancer.

In this large cohort study, high fetal growth and multiple gestation were independently associated with subsequent higher maternal risk of colorectal cancer. These findings warrant further investigation of maternal growth factor and estrogen pathways in the etiology of colorectal cancer.
If confirmed, our findings may help identify subgroups of women at high risk of colorectal cancer.

For more information
American Association for Cancer Research
Cancer Epidemiology, Biomarkers & Prevention

MDN