The researchers, led by Dr. Sarah Jackson of the US National Cancer Institute, who made the relevant publication in the American Cancer Society’s CANCER journal, analyzed data on 171,274 men and 122,826 women aged 50 to 71. What did the research show?
The more types of cancer are more common in men than in women, for reasons that are not yet fully understood, according to a new American scientific research.
The answer probably lies more in underlying biological differences between the sexes and less in differences in male-female behaviors such as smoking, alcohol consumption, diet and other lifestyle factors. A better understanding of the reasons for these differences in cancer risk will hopefully lead to improved cancer prevention and treatment.
The researchers, led by Dr. Sarah Jackson of the US National Cancer Institute, who made the relevant publication in the American Cancer Society’s CANCER journal, analyzed data on 171,274 men and 122,826 women aged 50 to 71. During the study, 17,951 new cancers were diagnosed in men and 8,742 in women.
The likelihood of cancer was lower in men than in women only for thyroid and gallbladder cancers. For cancers elsewhere in the body, the risk was 1.3 to 10.8 times greater in men than in women.
THE more increased risk for men it concerns cancer of the esophagus (10.8 times greater compared to women), larynx (3.5 times greater) and bladder cancer (3.3 times).
The research estimates that men have an increased risk for most cancers even after accounting for a wide range of their riskier behaviors and more frequent exposure to carcinogens in the environment. Gender differences in behavior were estimated to only partially explain (from 11% in esophageal cancer to 50% in lung cancer) the increased cancer risk in men.
Therefore, according to the researchers, it is the biological differences (genetic, immunological, etc.) between the two sexes that play a major role in men being more vulnerable to cancer than women.
“Our findings show that there are differences in the incidence of cancers that are not explained by exposure to environmental factors alone. This means that there are inherent biological differences between men and women that influence cancer vulnerability,” Dr. Jackson said.
RES-EMP
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