People with two or more older siblings are 50% more likely to develop early colon cancer. Scientists from New York have come to these conclusions. Research results It was published In the journal Clinical Gastroenterology and Hepatology (CGH).
The study included nearly 500,000 American adults. The researchers collected information about the participants’ health status and excluded the influence of other known cancer risk factors, such as family history, excess body weight and smoking. They found that early colorectal cancer was diagnosed 50% more often among those with two or more older siblings than among participants who were the only child in the family.
Scientists have suggested that younger siblings are more likely to contract various childhood diseases from their elders. Pathogenic bacteria can also be transmitted from child to child, disrupting the composition of the intestinal microflora and potentially causing cancer. The increased incidence of childhood infections also increases the likelihood of antibiotic prescriptions. Some studies have shown that such drugs may be an indirect cause of colorectal cancer.
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Source: Gazeta
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