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Cancer mortality rates are higher in men than women in U.S., study finds

Date:
July 13, 2011
Source:
American Association for Cancer Research
Summary:
Overall cancer mortality rates are higher for men than women in the United States, according to a new study.
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Overall cancer mortality rates are higher for men than women in the United States, according to a study published in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.

Michael B. Cook, Ph.D., an investigator in the division of cancer epidemiology and genetics at the National Cancer Institute, and colleagues used U.S. vital rates and survival data from the SEER database for 36 cancers by gender and age. They assessed whether cancer mortality rates and cancer survival differed by gender.

"Men are more likely to die from cancer than women," said Cook. "We found this to be true for a majority of specific types of cancer."

Results showed that the cancers that had the highest male-to-female mortality rate ratios were: lip cancer (where 5.51 men died compared to 1 female); larynx (5.37-to-1); hypopharynx (4.47-to-1); esophagus (4.08-to-1); and urinary bladder (3.36-to-1). Cancers with the highest mortality rates also showed greater risk of death in men than women: lung and bronchus (2.31-to-1); colon and rectum (1.42-to-1); pancreas (1.37-to-1); leukemia (1.75-to-1); and liver and intrahepatic bile duct (2.23-to-1).

In their analysis of five-year cancer survival, the researchers adjusted for age, year of diagnosis and tumor stage and grade, when this information was available. Cook and his team found that a person's gender did not play a major role in cancer survival.

For many cancers, men have poorer survival than women but the differences are slight. It is difficult to assign any singular root cause, but influences include differences in behavior of the tumor, cancer screening among people without symptoms, presence of other illnesses and health care seeking behaviors.

"Our research suggests that the main factor driving the greater frequency of cancer deaths in men is the greater frequency of cancer diagnosis, rather than poorer survival once the cancer occurs," said Cook. "If we can identify the causes of these gender differences in cancer incidence then we can take preventative actions to reduce the cancer burden in both men and women."


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The above post is reprinted from materials provided by American Association for Cancer Research. Note: Materials may be edited for content and length.


Journal Reference:

  1. Michael B. Cook, Katherine A. McGlynn, Susan S. Devesa, Neal D. Freedman, William F. Anderson. Sex Disparities in Cancer Mortality and Survival. Cancer Epidemiology, Biomarkers & Prevention, 2011; DOI: 10.1158/1055-9965.EPI-11-0246

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American Association for Cancer Research. "Cancer mortality rates are higher in men than women in U.S., study finds." ScienceDaily. ScienceDaily, 13 July 2011. <www.sciencedaily.com/releases/2011/07/110712133328.htm>.
American Association for Cancer Research. (2011, July 13). Cancer mortality rates are higher in men than women in U.S., study finds. ScienceDaily. Retrieved July 1, 2015 from www.sciencedaily.com/releases/2011/07/110712133328.htm
American Association for Cancer Research. "Cancer mortality rates are higher in men than women in U.S., study finds." ScienceDaily. www.sciencedaily.com/releases/2011/07/110712133328.htm (accessed July 1, 2015).

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